diff --git a/modules/internal/targets.js b/modules/internal/targets.js
index aafb2181..3cf56cb6 100644
--- a/modules/internal/targets.js
+++ b/modules/internal/targets.js
@@ -400,7 +400,7 @@ targets.setLastVersion = function (type, version) {
     } else if (type.startsWith('/slick-lightbox/0.')) {
         return '0.2.12';
     } else if (type.startsWith('/socket.io/2.')) {
-        return '2.3.0';
+        return '2.4.0';
     } else if (type.startsWith('/socket.io/3.')) {
         return '3.0.4';
     } else if (type.startsWith('/spin.js/2.')) {
diff --git a/pages/updates/updates.html b/pages/updates/updates.html
index 0f3525ba..f2dde207 100644
--- a/pages/updates/updates.html
+++ b/pages/updates/updates.html
@@ -28,6 +28,7 @@
                         <li>Added: noUiSlider v14.6.3 (<a href="https://codeberg.org/nobody/LocalCDN/issues/219">#219</a>)</li>
                         <li>Added: chosen v1.8.7 (<a href="https://codeberg.org/nobody/LocalCDN/issues/219">#219</a>)</li>
                         <li>Updated: axios v0.21.0 -> v0.21.1 (<a href="https://codeberg.org/nobody/LocalCDN/issues/221">#221</a>)</li>
+                        <li>Updated: Socket.IO v2.3.0 -> v2.4.0 (<a href="https://codeberg.org/nobody/LocalCDN/issues/222">#222</a>)</li>
                     </ul>
                     <div id="generator-section">
                         <div class="topic-label">
diff --git a/resources/socket.io/2.3.0/socket.io.jsm b/resources/socket.io/2.3.0/socket.io.jsm
deleted file mode 100644
index 72575043..00000000
--- a/resources/socket.io/2.3.0/socket.io.jsm
+++ /dev/null
@@ -1,9 +0,0 @@
-/*!
- * Socket.IO v2.3.0
- * (c) 2014-2019 Guillermo Rauch
- * Released under the MIT License.
- */
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i[t]({query:e,socket:this,agent:n.agent||this.agent,hostname:n.hostname||this.hostname,port:n.port||this.port,secure:n.secure||this.secure,path:n.path||this.path,forceJSONP:n.forceJSONP||this.forceJSONP,jsonp:n.jsonp||this.jsonp,forceBase64:n.forceBase64||this.forceBase64,enablesXDR:n.enablesXDR||this.enablesXDR,withCredentials:n.withCredentials||this.withCredentials,timestampRequests:n.timestampRequests||this.timestampRequests,timestampParam:n.timestampParam||this.timestampParam,policyPort:n.policyPort||this.policyPort,pfx:n.pfx||this.pfx,key:n.key||this.key,passphrase:n.passphrase||this.passphrase,cert:n.cert||this.cert,ca:n.ca||this.ca,ciphers:n.ciphers||this.ciphers,rejectUnauthorized:n.rejectUnauthorized||this.rejectUnauthorized,perMessageDeflate:n.perMessageDeflate||this.perMessageDeflate,extraHeaders:n.extraHeaders||this.extraHeaders,forceNode:n.forceNode||this.forceNode,localAddress:n.localAddress||this.localAddress,requestTimeout:n.requestTimeout||this.requestTimeout,protocols:n.protocols||void 0,isReactNative:this.isReactNative});return r},r.prototype.open=function(){var t;if(this.rememberUpgrade&&r.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)t="websocket";else{
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pong',t),f.upgrading=!0,f.emit("upgrading",p),!p)return;r.priorWebsocketSuccess="websocket"===p.name,a('pausing current transport "%s"',f.transport.name),f.transport.pause(function(){h||"closed"!==f.readyState&&(a("changing transport and sending upgrade packet"),u(),f.setTransport(p),p.send([{type:"upgrade"}]),f.emit("upgrade",p),p=null,f.upgrading=!1,f.flush())})}else{a('probe transport "%s" failed',t);var n=new Error("probe error");n.transport=p.name,f.emit("upgradeError",n)}}))}function n(){h||(h=!0,u(),p.close(),p=null)}function o(e){var r=new Error("probe error: "+e);r.transport=p.name,n(),a('probe transport "%s" failed because of error: %s',t,e),f.emit("upgradeError",r)}function i(){o("transport closed")}function s(){o("socket closed")}function c(t){p&&t.name!==p.name&&(a('"%s" works - aborting "%s"',t.name,p.name),n())}function u(){p.removeListener("open",e),p.removeListener("error",o),p.removeListener("close",i),f.removeListener("close",s),f.removeListener("upgrading",c)}a('probing transport "%s"',t);var p=this.createTransport(t,{probe:1}),h=!1,f=this;r.priorWebsocketSuccess=!1,p.once("open",e),p.once("error",o),p.once("close",i),this.once("close",s),this.once("upgrading",c),p.open()},r.prototype.onOpen=function(){if(a("socket open"),this.readyState="open",r.priorWebsocketSuccess="websocket"===this.transport.name,this.emit("open"),this.flush(),"open"===this.readyState&&this.upgrade&&this.transport.pause){a("starting upgrade probes");for(var t=0,e=this.upgrades.length;t<e;t++)this.probe(this.upgrades[t])}},r.prototype.onPacket=function(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(a('socket receive: type "%s", data 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timeout")},t||e.pingInterval+e.pingTimeout)},r.prototype.setPing=function(){var t=this;clearTimeout(t.pingIntervalTimer),t.pingIntervalTimer=setTimeout(function(){a("writing ping packet - expecting pong within %sms",t.pingTimeout),t.ping(),t.onHeartbeat(t.pingTimeout)},t.pingInterval)},r.prototype.ping=function(){var t=this;this.sendPacket("ping",function(){t.emit("ping")})},r.prototype.onDrain=function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emit("drain"):this.flush()},r.prototype.flush=function(){"closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length&&(a("flushing %d packets in socket",this.writeBuffer.length),this.transport.send(this.writeBuffer),this.prevBufferLen=this.writeBuffer.length,this.emit("flush"))},r.prototype.write=r.prototype.send=function(t,e,n){return this.sendPacket("message",t,e,n),this},r.prototype.sendPacket=function(t,e,n,r){if("function"==typeof e&&(r=e,e=void 0),"function"==typeof n&&(r=n,n=null),"closing"!==this.readyState&&"closed"!==this.readyState){n=n||{},n.compress=!1!==n.compress;var o={type:t,data:e,options:n};this.emit("packetCreate",o),this.writeBuffer.push(o),r&&this.once("flush",r),this.flush()}},r.prototype.close=function(){function t(){r.onClose("forced close"),a("socket closing - telling transport to close"),r.transport.close()}function e(){r.removeListener("upgrade",e),r.removeListener("upgradeError",e),t()}function n(){r.once("upgrade",e),r.once("upgradeError",e)}if("opening"===this.readyState||"open"===this.readyState){this.readyState="closing";var r=this;this.writeBuffer.length?this.once("drain",function(){this.upgrading?n():t()}):this.upgrading?n():t()}return this},r.prototype.onError=function(t){a("socket error %j",t),r.priorWebsocketSuccess=!1,this.emit("error",t),this.onClose("transport error",t)},r.prototype.onClose=function(t,e){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState){a('socket close with reason: "%s"',t);var n=this;clearTimeout(this.pingIntervalTimer),clearTimeout(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),this.readyState="closed",this.id=null,this.emit("close",t,e),n.writeBuffer=[],n.prevBufferLen=0}},r.prototype.filterUpgrades=function(t){for(var e=[],n=0,r=t.length;n<r;n++)~c(this.transports,t[n])&&e.push(t[n]);return e}},function(t,e,n){function r(t){var e,n=!1,r=!1,a=!1!==t.jsonp;if("undefined"!=typeof location){var c="https:"===location.protocol,u=location.port;u||(u=c?443:80),n=t.hostname!==location.hostname||u!==t.port,r=t.secure!==c}if(t.xdomain=n,t.xscheme=r,e=new o(t),"open"in e&&!t.forceJSONP)return new i(t);if(!a)throw new Error("JSONP disabled");return new s(t)}var o=n(19),i=n(21),s=n(35),a=n(36);e.polling=r,e.websocket=a},function(t,e,n){var r=n(20);t.exports=function(t){var e=t.xdomain,n=t.xscheme,o=t.enablesXDR;try{if("undefined"!=typeof XMLHttpRequest&&(!e||r))return new XMLHttpRequest}catch(i){}try{if("undefined"!=typeof XDomainRequest&&!n&&o)return new XDomainRequest}catch(i){}if(!e)try{return new(self[["Active"].concat("Object").join("X")])("Microsoft.XMLHTTP")}catch(i){}}},function(t,e){try{t.exports="undefined"!=typeof XMLHttpRequest&&"withCredentials"in new XMLHttpRequest}catch(n){t.exports=!1}},function(t,e,n){function r(){}function o(t){if(c.call(this,t),this.requestTimeout=t.requestTimeout,this.extraHeaders=t.extraHeaders,"undefined"!=typeof location){var e="https:"===location.protocol,n=location.port;n||(n=e?443:80),this.xd="undefined"!=typeof location&&t.hostname!==location.hostname||n!==t.port,this.xs=t.secure!==e}}function i(t){this.method=t.method||"GET",this.uri=t.uri,this.xd=!!t.xd,this.xs=!!t.xs,this.async=!1!==t.async,this.data=void 0!==t.data?t.data:null,this.agent=t.agent,this.isBinary=t.isBinary,this.supportsBinary=t.supportsBinary,this.enablesXDR=t.enablesXDR,this.withCredentials=t.withCredentials,this.requestTimeout=t.requestTimeout,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized,this.extraHeaders=t.extraHeaders,this.create()}function s(){for(var t in i.requests)i.requests.hasOwnProperty(t)&&i.requests[t].abort()}var a=n(19),c=n(22),u=n(11),p=n(33),h=n(3)("engine.io-client:polling-xhr");if(t.exports=o,t.exports.Request=i,p(o,c),o.prototype.supportsBinary=!0,o.prototype.request=function(t){return t=t||{},t.uri=this.uri(),t.xd=this.xd,t.xs=this.xs,t.agent=this.agent||!1,t.supportsBinary=this.supportsBinary,t.enablesXDR=this.enablesXDR,t.withCredentials=this.withCredentials,t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized,t.requestTimeout=this.requestTimeout,t.extraHeaders=this.extraHeaders,new i(t)},o.prototype.doWrite=function(t,e){var n="string"!=typeof t&&void 0!==t,r=this.request({method:"POST",data:t,isBinary:n}),o=this;r.on("success",e),r.on("error",function(t){o.onError("xhr post error",t)}),this.sendXhr=r},o.prototype.doPoll=function(){h("xhr poll");var t=this.request(),e=this;t.on("data",function(t){e.onData(t)}),t.on("error",function(t){e.onError("xhr poll error",t)}),this.pollXhr=t},u(i.prototype),i.prototype.create=function(){var t={agent:this.agent,xdomain:this.xd,xscheme:this.xs,enablesXDR:this.enablesXDR};t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized;var e=this.xhr=new a(t),n=this;try{h("xhr open %s: %s",this.method,this.uri),e.open(this.method,this.uri,this.async);try{if(this.extraHeaders){e.setDisableHeaderCheck&&e.setDisableHeaderCheck(!0);for(var r in this.extraHeaders)this.extraHeaders.hasOwnProperty(r)&&e.setRequestHeader(r,this.extraHeaders[r])}}catch(o){}if("POST"===this.method)try{this.isBinary?e.setRequestHeader("Content-type","application/octet-stream"):e.setRequestHeader("Content-type","text/plain;charset=UTF-8")}catch(o){}try{e.setRequestHeader("Accept","*/*")}catch(o){}"withCredentials"in e&&(e.withCredentials=this.withCredentials),this.requestTimeout&&(e.timeout=this.requestTimeout),this.hasXDR()?(e.onload=function(){n.onLoad()},e.onerror=function(){n.onError(e.responseText)}):e.onreadystatechange=function(){if(2===e.readyState)try{var t=e.getResponseHeader("Content-Type");(n.supportsBinary&&"application/octet-stream"===t||"application/octet-stream; charset=UTF-8"===t)&&(e.responseType="arraybuffer")}catch(r){}4===e.readyState&&(200===e.status||1223===e.status?n.onLoad():setTimeout(function(){n.onError("number"==typeof e.status?e.status:0)},0))},h("xhr data %s",this.data),e.send(this.data)}catch(o){return void setTimeout(function(){n.onError(o)},0)}"undefined"!=typeof document&&(this.index=i.requestsCount++,i.requests[this.index]=this)},i.prototype.onSuccess=function(){this.emit("success"),this.cleanup()},i.prototype.onData=function(t){this.emit("data",t),this.onSuccess()},i.prototype.onError=function(t){this.emit("error",t),this.cleanup(!0)},i.prototype.cleanup=function(t){if("undefined"!=typeof this.xhr&&null!==this.xhr){if(this.hasXDR()?this.xhr.onload=this.xhr.onerror=r:this.xhr.onreadystatechange=r,t)try{this.xhr.abort()}catch(e){}"undefined"!=typeof document&&delete i.requests[this.index],this.xhr=null}},i.prototype.onLoad=function(){var t;try{var e;try{e=this.xhr.getResponseHeader("Content-Type")}catch(n){}t="application/octet-stream"===e||"application/octet-stream; charset=UTF-8"===e?this.xhr.response||this.xhr.responseText:this.xhr.responseText}catch(n){this.onError(n)}null!=t&&this.onData(t)},i.prototype.hasXDR=function(){return"undefined"!=typeof XDomainRequest&&!this.xs&&this.enablesXDR},i.prototype.abort=function(){this.cleanup()},i.requestsCount=0,i.requests={},"undefined"!=typeof document)if("function"==typeof attachEvent)attachEvent("onunload",s);else if("function"==typeof addEventListener){var f="onpagehide"in self?"pagehide":"unload";addEventListener(f,s,!1)}},function(t,e,n){function r(t){var e=t&&t.forceBase64;p&&!e||(this.supportsBinary=!1),o.call(this,t)}var o=n(23),i=n(32),s=n(24),a=n(33),c=n(34),u=n(3)("engine.io-client:polling");t.exports=r;var p=function(){var t=n(19),e=new t({xdomain:!1});return null!=e.responseType}();a(r,o),r.prototype.name="polling",r.prototype.doOpen=function(){this.poll()},r.prototype.pause=function(t){function e(){u("paused"),n.readyState="paused",t()}var n=this;if(this.readyState="pausing",this.polling||!this.writable){var r=0;this.polling&&(u("we are currently polling - waiting to pause"),r++,this.once("pollComplete",function(){u("pre-pause polling complete"),--r||e()})),this.writable||(u("we are currently writing - waiting to pause"),r++,this.once("drain",function(){u("pre-pause writing complete"),--r||e()}))}else e()},r.prototype.poll=function(){u("polling"),this.polling=!0,this.doPoll(),this.emit("poll")},r.prototype.onData=function(t){var e=this;u("polling got data %s",t);var n=function(t,n,r){return"opening"===e.readyState&&e.onOpen(),"close"===t.type?(e.onClose(),!1):void e.onPacket(t)};s.decodePayload(t,this.socket.binaryType,n),"closed"!==this.readyState&&(this.polling=!1,this.emit("pollComplete"),"open"===this.readyState?this.poll():u('ignoring poll - transport state "%s"',this.readyState))},r.prototype.doClose=function(){function t(){u("writing close packet"),e.write([{type:"close"}])}var e=this;"open"===this.readyState?(u("transport open - closing"),t()):(u("transport not open - deferring close"),this.once("open",t))},r.prototype.write=function(t){var e=this;this.writable=!1;var n=function(){e.writable=!0,e.emit("drain")};s.encodePayload(t,this.supportsBinary,function(t){e.doWrite(t,n)})},r.prototype.uri=function(){var t=this.query||{},e=this.secure?"https":"http",n="";!1!==this.timestampRequests&&(t[this.timestampParam]=c()),this.supportsBinary||t.sid||(t.b64=1),t=i.encode(t),this.port&&("https"===e&&443!==Number(this.port)||"http"===e&&80!==Number(this.port))&&(n=":"+this.port),t.length&&(t="?"+t);var r=this.hostname.indexOf(":")!==-1;return e+"://"+(r?"["+this.hostname+"]":this.hostname)+n+this.path+t}},function(t,e,n){function r(t){this.path=t.path,this.hostname=t.hostname,this.port=t.port,this.secure=t.secure,this.query=t.query,this.timestampParam=t.timestampParam,this.timestampRequests=t.timestampRequests,this.readyState="",this.agent=t.agent||!1,this.socket=t.socket,this.enablesXDR=t.enablesXDR,this.withCredentials=t.withCredentials,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized,this.forceNode=t.forceNode,this.isReactNative=t.isReactNative,this.extraHeaders=t.extraHeaders,this.localAddress=t.localAddress}var o=n(24),i=n(11);t.exports=r,i(r.prototype),r.prototype.onError=function(t,e){var n=new Error(t);return n.type="TransportError",n.description=e,this.emit("error",n),this},r.prototype.open=function(){return"closed"!==this.readyState&&""!==this.readyState||(this.readyState="opening",this.doOpen()),this},r.prototype.close=function(){return"opening"!==this.readyState&&"open"!==this.readyState||(this.doClose(),this.onClose()),this},r.prototype.send=function(t){if("open"!==this.readyState)throw new Error("Transport not open");this.write(t)},r.prototype.onOpen=function(){this.readyState="open",this.writable=!0,this.emit("open")},r.prototype.onData=function(t){var e=o.decodePacket(t,this.socket.binaryType);this.onPacket(e)},r.prototype.onPacket=function(t){this.emit("packet",t)},r.prototype.onClose=function(){this.readyState="closed",this.emit("close")}},function(t,e,n){function r(t,n){var r="b"+e.packets[t.type]+t.data.data;return n(r)}function o(t,n,r){if(!n)return e.encodeBase64Packet(t,r);var o=t.data,i=new Uint8Array(o),s=new Uint8Array(1+o.byteLength);s[0]=v[t.type];for(var a=0;a<i.length;a++)s[a+1]=i[a];return r(s.buffer)}function i(t,n,r){if(!n)return e.encodeBase64Packet(t,r);var o=new FileReader;return o.onload=function(){e.encodePacket({type:t.type,data:o.result},n,!0,r)},o.readAsArrayBuffer(t.data)}function s(t,n,r){if(!n)return e.encodeBase64Packet(t,r);if(g)return i(t,n,r);var o=new Uint8Array(1);o[0]=v[t.type];var s=new w([o.buffer,t.data]);return r(s)}function a(t){try{t=d.decode(t,{strict:!1})}catch(e){return!1}return t}function c(t,e,n){for(var r=new Array(t.length),o=l(t.length,n),i=function(t,n,o){e(n,function(e,n){r[t]=n,o(e,r)})},s=0;s<t.length;s++)i(s,t[s],o)}var u,p=n(25),h=n(26),f=n(27),l=n(28),d=n(29);"undefined"!=typeof ArrayBuffer&&(u=n(30));var y="undefined"!=typeof navigator&&/Android/i.test(navigator.userAgent),m="undefined"!=typeof navigator&&/PhantomJS/i.test(navigator.userAgent),g=y||m;e.protocol=3;var v=e.packets={open:0,close:1,ping:2,pong:3,message:4,upgrade:5,noop:6},b=p(v),C={type:"error",data:"parser 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e.decodeBase64Packet(t.substr(1),n);if(r&&(t=a(t),t===!1))return C;var o=t.charAt(0);return Number(o)==o&&b[o]?t.length>1?{type:b[o],data:t.substring(1)}:{type:b[o]}:C}var i=new Uint8Array(t),o=i[0],s=f(t,1);return w&&"blob"===n&&(s=new w([s])),{type:b[o],data:s}},e.decodeBase64Packet=function(t,e){var n=b[t.charAt(0)];if(!u)return{type:n,data:{base64:!0,data:t.substr(1)}};var r=u.decode(t.substr(1));return"blob"===e&&w&&(r=new w([r])),{type:n,data:r}},e.encodePayload=function(t,n,r){function o(t){return t.length+":"+t}function i(t,r){e.encodePacket(t,!!s&&n,!1,function(t){r(null,o(t))})}"function"==typeof n&&(r=n,n=null);var s=h(t);return n&&s?w&&!g?e.encodePayloadAsBlob(t,r):e.encodePayloadAsArrayBuffer(t,r):t.length?void c(t,i,function(t,e){return r(e.join(""))}):r("0:")},e.decodePayload=function(t,n,r){if("string"!=typeof t)return e.decodePayloadAsBinary(t,n,r);"function"==typeof n&&(r=n,n=null);var o;if(""===t)return r(C,0,1);for(var i,s,a="",c=0,u=t.length;c<u;c++){var p=t.charAt(c);if(":"===p){if(""===a||a!=(i=Number(a)))return r(C,0,1);if(s=t.substr(c+1,i),a!=s.length)return r(C,0,1);if(s.length){if(o=e.decodePacket(s,n,!1),C.type===o.type&&C.data===o.data)return r(C,0,1);var h=r(o,c+i,u);if(!1===h)return}c+=i,a=""}else a+=p}return""!==a?r(C,0,1):void 0},e.encodePayloadAsArrayBuffer=function(t,n){function r(t,n){e.encodePacket(t,!0,!0,function(t){return n(null,t)})}return t.length?void c(t,r,function(t,e){var r=e.reduce(function(t,e){var n;return n="string"==typeof e?e.length:e.byteLength,t+n.toString().length+n+2},0),o=new Uint8Array(r),i=0;return e.forEach(function(t){var e="string"==typeof t,n=t;if(e){for(var r=new Uint8Array(t.length),s=0;s<t.length;s++)r[s]=t.charCodeAt(s);n=r.buffer}e?o[i++]=0:o[i++]=1;for(var a=n.byteLength.toString(),s=0;s<a.length;s++)o[i++]=parseInt(a[s]);o[i++]=255;for(var r=new Uint8Array(n),s=0;s<r.length;s++)o[i++]=r[s]}),n(o.buffer)}):n(new ArrayBuffer(0))},e.encodePayloadAsBlob=function(t,n){function 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diff --git a/resources/socket.io/2.4.0/socket.io.min.jsm b/resources/socket.io/2.4.0/socket.io.min.jsm
new file mode 100644
index 00000000..66114688
--- /dev/null
+++ b/resources/socket.io/2.4.0/socket.io.min.jsm
@@ -0,0 +1 @@
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n(){~u(r.connecting,o)||r.connecting.push(o)}var r,o=this.nsps[t];return o||(o=new i(this,t,e),this.nsps[t]=o,r=this,o.on("connecting",n),o.on("connect",function(){o.id=r.generateId(t)}),this.autoConnect&&n()),o},r.prototype.destroy=function(t){t=u(this.connecting,t);~t&&this.connecting.splice(t,1),this.connecting.length||this.close()},r.prototype.packet=function(n){h("writing packet %j",n);var r=this;n.query&&0===n.type&&(n.nsp+="?"+n.query),r.encoding?r.packetBuffer.push(n):(r.encoding=!0,this.encoder.encode(n,function(t){for(var e=0;e<t.length;e++)r.engine.write(t[e],n.options);r.encoding=!1,r.processPacketQueue()}))},r.prototype.processPacketQueue=function(){var t;0<this.packetBuffer.length&&!this.encoding&&(t=this.packetBuffer.shift(),this.packet(t))},r.prototype.cleanup=function(){h("cleanup");for(var t=this.subs.length,e=0;e<t;e++)this.subs.shift().destroy();this.packetBuffer=[],this.encoding=!1,this.lastPing=null,this.decoder.destroy()},r.prototype.close=r.prototype.disconnect=function(){h("disconnect"),this.skipReconnect=!0,this.reconnecting=!1,"opening"===this.readyState&&this.cleanup(),this.backoff.reset(),this.readyState="closed",this.engine&&this.engine.close()},r.prototype.onclose=function(t){h("onclose"),this.cleanup(),this.backoff.reset(),this.readyState="closed",this.emit("close",t),this._reconnection&&!this.skipReconnect&&this.reconnect()},r.prototype.reconnect=function(){if(this.reconnecting||this.skipReconnect)return this;var t,e,n=this;this.backoff.attempts>=this._reconnectionAttempts?(h("reconnect failed"),this.backoff.reset(),this.emitAll("reconnect_failed"),this.reconnecting=!1):(t=this.backoff.duration(),h("will wait %dms before reconnect attempt",t),this.reconnecting=!0,e=setTimeout(function(){n.skipReconnect||(h("attempting reconnect"),n.emitAll("reconnect_attempt",n.backoff.attempts),n.emitAll("reconnecting",n.backoff.attempts),n.skipReconnect||n.open(function(t){t?(h("reconnect attempt error"),n.reconnecting=!1,n.reconnect(),n.emitAll("reconnect_error",t.data)):(h("reconnect success"),n.onreconnect())}))},t),this.subs.push({destroy:function(){clearTimeout(e)}}))},r.prototype.onreconnect=function(){var t=this.backoff.attempts;this.reconnecting=!1,this.backoff.reset(),this.updateSocketIds(),this.emitAll("reconnect",t)}},function(t,e,n){t.exports=n(14),t.exports.parser=n(22)},function(t,e,n){function u(t,e){return this instanceof u?(e=e||{},t&&"object"==typeof t&&(e=t,t=null),t?(t=a(t),e.hostname=t.host,e.secure="https"===t.protocol||"wss"===t.protocol,e.port=t.port,t.query&&(e.query=t.query)):e.host&&(e.hostname=a(e.host).host),this.secure=null!=e.secure?e.secure:"undefined"!=typeof location&&"https:"===location.protocol,e.hostname&&!e.port&&(e.port=this.secure?"443":"80"),this.agent=e.agent||!1,this.hostname=e.hostname||("undefined"!=typeof location?location.hostname:"localhost"),this.port=e.port||("undefined"!=typeof location&&location.port?location.port:this.secure?443:80),this.query=e.query||{},"string"==typeof this.query&&(this.query=c.decode(this.query)),this.upgrade=!1!==e.upgrade,this.path=(e.path||"/engine.io").replace(/\/$/,"")+"/",this.forceJSONP=!!e.forceJSONP,this.jsonp=!1!==e.jsonp,this.forceBase64=!!e.forceBase64,this.enablesXDR=!!e.enablesXDR,this.withCredentials=!1!==e.withCredentials,this.timestampParam=e.timestampParam||"t",this.timestampRequests=e.timestampRequests,this.transports=e.transports||["polling","websocket"],this.transportOptions=e.transportOptions||{},this.readyState="",this.writeBuffer=[],this.prevBufferLen=0,this.policyPort=e.policyPort||843,this.rememberUpgrade=e.rememberUpgrade||!1,this.binaryType=null,this.onlyBinaryUpgrades=e.onlyBinaryUpgrades,this.perMessageDeflate=!1!==e.perMessageDeflate&&(e.perMessageDeflate||{}),!0===this.perMessageDeflate&&(this.perMessageDeflate={}),this.perMessageDeflate&&null==this.perMessageDeflate.threshold&&(this.perMessageDeflate.threshold=1024),this.pfx=e.pfx||null,this.key=e.key||null,this.passphrase=e.passphrase||null,this.cert=e.cert||null,this.ca=e.ca||null,this.ciphers=e.ciphers||null,this.rejectUnauthorized=void 0===e.rejectUnauthorized||e.rejectUnauthorized,this.forceNode=!!e.forceNode,this.isReactNative="undefined"!=typeof navigator&&"string"==typeof navigator.product&&"reactnative"===navigator.product.toLowerCase(),"undefined"!=typeof self&&!this.isReactNative||(e.extraHeaders&&0<Object.keys(e.extraHeaders).length&&(this.extraHeaders=e.extraHeaders),e.localAddress&&(this.localAddress=e.localAddress)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingIntervalTimer=null,this.pingTimeoutTimer=null,void this.open()):new u(t,e)}var r=n(15),o=n(8),f=n(3)("engine.io-client:socket"),i=n(36),s=n(22),a=n(2),c=n(30);(t.exports=u).priorWebsocketSuccess=!1,o(u.prototype),u.protocol=s.protocol,(u.Socket=u).Transport=n(21),u.transports=n(15),u.parser=n(22),u.prototype.createTransport=function(t){f('creating transport "%s"',t);var e=function(t){var e,n={};for(e in t)t.hasOwnProperty(e)&&(n[e]=t[e]);return n}(this.query);e.EIO=s.protocol,e.transport=t;var n=this.transportOptions[t]||{};return this.id&&(e.sid=this.id),new r[t]({query:e,socket:this,agent:n.agent||this.agent,hostname:n.hostname||this.hostname,port:n.port||this.port,secure:n.secure||this.secure,path:n.path||this.path,forceJSONP:n.forceJSONP||this.forceJSONP,jsonp:n.jsonp||this.jsonp,forceBase64:n.forceBase64||this.forceBase64,enablesXDR:n.enablesXDR||this.enablesXDR,withCredentials:n.withCredentials||this.withCredentials,timestampRequests:n.timestampRequests||this.timestampRequests,timestampParam:n.timestampParam||this.timestampParam,policyPort:n.policyPort||this.policyPort,pfx:n.pfx||this.pfx,key:n.key||this.key,passphrase:n.passphrase||this.passphrase,cert:n.cert||this.cert,ca:n.ca||this.ca,ciphers:n.ciphers||this.ciphers,rejectUnauthorized:n.rejectUnauthorized||this.rejectUnauthorized,perMessageDeflate:n.perMessageDeflate||this.perMessageDeflate,extraHeaders:n.extraHeaders||this.extraHeaders,forceNode:n.forceNode||this.forceNode,localAddress:n.localAddress||this.localAddress,requestTimeout:n.requestTimeout||this.requestTimeout,protocols:n.protocols||void 0,isReactNative:this.isReactNative})},u.prototype.open=function(){var t;if(this.rememberUpgrade&&u.priorWebsocketSuccess&&-1!==this.transports.indexOf("websocket"))t="websocket";else{if(0===this.transports.length){var e=this;return void setTimeout(function(){e.emit("error","No transports available")},0)}t=this.transports[0]}this.readyState="opening";try{t=this.createTransport(t)}catch(t){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)},u.prototype.setTransport=function(t){f("setting transport %s",t.name);var e=this;this.transport&&(f("clearing existing transport %s",this.transport.name),this.transport.removeAllListeners()),(this.transport=t).on("drain",function(){e.onDrain()}).on("packet",function(t){e.onPacket(t)}).on("error",function(t){e.onError(t)}).on("close",function(){e.onClose("transport close")})},u.prototype.probe=function(n){function t(){var t;h.onlyBinaryUpgrades&&(t=!this.supportsBinary&&h.transport.supportsBinary,p=p||t),p||(f('probe transport "%s" opened',n),c.send([{type:"ping",data:"probe"}]),c.once("packet",function(t){p||("pong"===t.type&&"probe"===t.data?(f('probe transport "%s" pong',n),h.upgrading=!0,h.emit("upgrading",c),c&&(u.priorWebsocketSuccess="websocket"===c.name,f('pausing current transport "%s"',h.transport.name),h.transport.pause(function(){p||"closed"!==h.readyState&&(f("changing transport and sending upgrade packet"),a(),h.setTransport(c),c.send([{type:"upgrade"}]),h.emit("upgrade",c),c=null,h.upgrading=!1,h.flush())}))):(f('probe transport "%s" failed',n),(t=new Error("probe error")).transport=c.name,h.emit("upgradeError",t)))}))}function r(){p||(p=!0,a(),c.close(),c=null)}function e(t){var e=new Error("probe error: "+t);e.transport=c.name,r(),f('probe transport "%s" failed because of error: %s',n,t),h.emit("upgradeError",e)}function o(){e("transport closed")}function i(){e("socket closed")}function s(t){c&&t.name!==c.name&&(f('"%s" works - aborting "%s"',t.name,c.name),r())}function a(){c.removeListener("open",t),c.removeListener("error",e),c.removeListener("close",o),h.removeListener("close",i),h.removeListener("upgrading",s)}f('probing transport "%s"',n);var c=this.createTransport(n,{probe:1}),p=!1,h=this;u.priorWebsocketSuccess=!1,c.once("open",t),c.once("error",e),c.once("close",o),this.once("close",i),this.once("upgrading",s),c.open()},u.prototype.onOpen=function(){if(f("socket open"),this.readyState="open",u.priorWebsocketSuccess="websocket"===this.transport.name,this.emit("open"),this.flush(),"open"===this.readyState&&this.upgrade&&this.transport.pause){f("starting upgrade probes");for(var t=0,e=this.upgrades.length;t<e;t++)this.probe(this.upgrades[t])}},u.prototype.onPacket=function(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(f('socket receive: type "%s", data "%s"',t.type,t.data),this.emit("packet",t),this.emit("heartbeat"),t.type){case"open":this.onHandshake(JSON.parse(t.data));break;case"pong":this.setPing(),this.emit("pong");break;case"error":var e=new Error("server error");e.code=t.data,this.onError(e);break;case"message":this.emit("data",t.data),this.emit("message",t.data)}else f('packet received with socket readyState "%s"',this.readyState)},u.prototype.onHandshake=function(t){this.emit("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.onOpen(),"closed"!==this.readyState&&(this.setPing(),this.removeListener("heartbeat",this.onHeartbeat),this.on("heartbeat",this.onHeartbeat))},u.prototype.onHeartbeat=function(t){clearTimeout(this.pingTimeoutTimer);var e=this;e.pingTimeoutTimer=setTimeout(function(){"closed"!==e.readyState&&e.onClose("ping timeout")},t||e.pingInterval+e.pingTimeout)},u.prototype.setPing=function(){var t=this;clearTimeout(t.pingIntervalTimer),t.pingIntervalTimer=setTimeout(function(){f("writing ping packet - expecting pong within %sms",t.pingTimeout),t.ping(),t.onHeartbeat(t.pingTimeout)},t.pingInterval)},u.prototype.ping=function(){var t=this;this.sendPacket("ping",function(){t.emit("ping")})},u.prototype.onDrain=function(){this.writeBuffer.splice(0,this.prevBufferLen),(this.prevBufferLen=0)===this.writeBuffer.length?this.emit("drain"):this.flush()},u.prototype.flush=function(){"closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length&&(f("flushing %d packets in socket",this.writeBuffer.length),this.transport.send(this.writeBuffer),this.prevBufferLen=this.writeBuffer.length,this.emit("flush"))},u.prototype.write=u.prototype.send=function(t,e,n){return this.sendPacket("message",t,e,n),this},u.prototype.sendPacket=function(t,e,n,r){"function"==typeof e&&(r=e,e=void 0),"function"==typeof n&&(r=n,n=null),"closing"!==this.readyState&&"closed"!==this.readyState&&((n=n||{}).compress=!1!==n.compress,n={type:t,data:e,options:n},this.emit("packetCreate",n),this.writeBuffer.push(n),r&&this.once("flush",r),this.flush())},u.prototype.close=function(){function t(){r.onClose("forced close"),f("socket closing - telling transport to close"),r.transport.close()}function e(){r.removeListener("upgrade",e),r.removeListener("upgradeError",e),t()}function n(){r.once("upgrade",e),r.once("upgradeError",e)}var r;return"opening"!==this.readyState&&"open"!==this.readyState||(this.readyState="closing",(r=this).writeBuffer.length?this.once("drain",function(){(this.upgrading?n:t)()}):(this.upgrading?n:t)()),this},u.prototype.onError=function(t){f("socket error %j",t),u.priorWebsocketSuccess=!1,this.emit("error",t),this.onClose("transport error",t)},u.prototype.onClose=function(t,e){"opening"!==this.readyState&&"open"!==this.readyState&&"closing"!==this.readyState||(f('socket close with reason: "%s"',t),clearTimeout(this.pingIntervalTimer),clearTimeout(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),this.readyState="closed",this.id=null,this.emit("close",t,e),this.writeBuffer=[],this.prevBufferLen=0)},u.prototype.filterUpgrades=function(t){for(var e=[],n=0,r=t.length;n<r;n++)~i(this.transports,t[n])&&e.push(t[n]);return e}},function(t,e,n){var s=n(16),a=n(19),c=n(33),n=n(34);e.polling=function(t){var e,n,r=!1,o=!1,i=!1!==t.jsonp;if("undefined"!=typeof location&&(e="https:"===location.protocol,n=(n=location.port)||(e?443:80),r=t.hostname!==location.hostname||n!==t.port,o=t.secure!==e),t.xdomain=r,t.xscheme=o,"open"in new s(t)&&!t.forceJSONP)return new a(t);if(!i)throw new Error("JSONP disabled");return new c(t)},e.websocket=n},function(t,e,n){var o=n(17),i=n(18);t.exports=function(t){var e=t.xdomain,n=t.xscheme,r=t.enablesXDR;try{if("undefined"!=typeof XMLHttpRequest&&(!e||o))return new XMLHttpRequest}catch(t){}try{if("undefined"!=typeof XDomainRequest&&!n&&r)return new XDomainRequest}catch(t){}if(!e)try{return new i[["Active"].concat("Object").join("X")]("Microsoft.XMLHTTP")}catch(t){}}},function(e,t){try{e.exports="undefined"!=typeof XMLHttpRequest&&"withCredentials"in new XMLHttpRequest}catch(t){e.exports=!1}},function(t,e){t.exports="undefined"!=typeof self?self:"undefined"!=typeof window?window:Function("return this")()},function(t,e,n){function r(){}function o(t){var e,n;c.call(this,t),this.requestTimeout=t.requestTimeout,this.extraHeaders=t.extraHeaders,"undefined"!=typeof location&&(e="https:"===location.protocol,n=(n=location.port)||(e?443:80),this.xd="undefined"!=typeof location&&t.hostname!==location.hostname||n!==t.port,this.xs=t.secure!==e)}function i(t){this.method=t.method||"GET",this.uri=t.uri,this.xd=!!t.xd,this.xs=!!t.xs,this.async=!1!==t.async,this.data=void 0!==t.data?t.data:null,this.agent=t.agent,this.isBinary=t.isBinary,this.supportsBinary=t.supportsBinary,this.enablesXDR=t.enablesXDR,this.withCredentials=t.withCredentials,this.requestTimeout=t.requestTimeout,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized,this.extraHeaders=t.extraHeaders,this.create()}function s(){for(var t in i.requests)i.requests.hasOwnProperty(t)&&i.requests[t].abort()}var a=n(16),c=n(20),p=n(8),h=n(31),u=n(3)("engine.io-client:polling-xhr"),n=n(18);t.exports=o,t.exports.Request=i,h(o,c),o.prototype.supportsBinary=!0,o.prototype.request=function(t){return(t=t||{}).uri=this.uri(),t.xd=this.xd,t.xs=this.xs,t.agent=this.agent||!1,t.supportsBinary=this.supportsBinary,t.enablesXDR=this.enablesXDR,t.withCredentials=this.withCredentials,t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized,t.requestTimeout=this.requestTimeout,t.extraHeaders=this.extraHeaders,new i(t)},o.prototype.doWrite=function(t,e){var n="string"!=typeof t&&void 0!==t,n=this.request({method:"POST",data:t,isBinary:n}),r=this;n.on("success",e),n.on("error",function(t){r.onError("xhr post error",t)}),this.sendXhr=n},o.prototype.doPoll=function(){u("xhr poll");var t=this.request(),e=this;t.on("data",function(t){e.onData(t)}),t.on("error",function(t){e.onError("xhr poll error",t)}),this.pollXhr=t},p(i.prototype),i.prototype.create=function(){var t={agent:this.agent,xdomain:this.xd,xscheme:this.xs,enablesXDR:this.enablesXDR};t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized;var e=this.xhr=new a(t),n=this;try{u("xhr open %s: %s",this.method,this.uri),e.open(this.method,this.uri,this.async);try{if(this.extraHeaders)for(var r in e.setDisableHeaderCheck&&e.setDisableHeaderCheck(!0),this.extraHeaders)this.extraHeaders.hasOwnProperty(r)&&e.setRequestHeader(r,this.extraHeaders[r])}catch(t){}if("POST"===this.method)try{this.isBinary?e.setRequestHeader("Content-type","application/octet-stream"):e.setRequestHeader("Content-type","text/plain;charset=UTF-8")}catch(t){}try{e.setRequestHeader("Accept","*/*")}catch(t){}"withCredentials"in e&&(e.withCredentials=this.withCredentials),this.requestTimeout&&(e.timeout=this.requestTimeout),this.hasXDR()?(e.onload=function(){n.onLoad()},e.onerror=function(){n.onError(e.responseText)}):e.onreadystatechange=function(){if(2===e.readyState)try{var t=e.getResponseHeader("Content-Type");(n.supportsBinary&&"application/octet-stream"===t||"application/octet-stream; charset=UTF-8"===t)&&(e.responseType="arraybuffer")}catch(t){}4===e.readyState&&(200===e.status||1223===e.status?n.onLoad():setTimeout(function(){n.onError("number"==typeof e.status?e.status:0)},0))},u("xhr data %s",this.data),e.send(this.data)}catch(t){return void setTimeout(function(){n.onError(t)},0)}"undefined"!=typeof document&&(this.index=i.requestsCount++,i.requests[this.index]=this)},i.prototype.onSuccess=function(){this.emit("success"),this.cleanup()},i.prototype.onData=function(t){this.emit("data",t),this.onSuccess()},i.prototype.onError=function(t){this.emit("error",t),this.cleanup(!0)},i.prototype.cleanup=function(t){if(void 0!==this.xhr&&null!==this.xhr){if(this.hasXDR()?this.xhr.onload=this.xhr.onerror=r:this.xhr.onreadystatechange=r,t)try{this.xhr.abort()}catch(t){}"undefined"!=typeof document&&delete i.requests[this.index],this.xhr=null}},i.prototype.onLoad=function(){var t,e;try{try{e=this.xhr.getResponseHeader("Content-Type")}catch(t){}t=("application/octet-stream"===e||"application/octet-stream; charset=UTF-8"===e)&&this.xhr.response||this.xhr.responseText}catch(t){this.onError(t)}null!=t&&this.onData(t)},i.prototype.hasXDR=function(){return"undefined"!=typeof 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t=this.uri(),e=this.protocols,n={};this.isReactNative||(n.agent=this.agent,n.perMessageDeflate=this.perMessageDeflate,n.pfx=this.pfx,n.key=this.key,n.passphrase=this.passphrase,n.cert=this.cert,n.ca=this.ca,n.ciphers=this.ciphers,n.rejectUnauthorized=this.rejectUnauthorized),this.extraHeaders&&(n.headers=this.extraHeaders),this.localAddress&&(n.localAddress=this.localAddress);try{this.ws=this.usingBrowserWebSocket&&!this.isReactNative?e?new f(t,e):new f(t):new f(t,e,n)}catch(t){return this.emit("error",t)}void 0===this.ws.binaryType&&(this.supportsBinary=!1),this.ws.supports&&this.ws.supports.binary?(this.supportsBinary=!0,this.ws.binaryType="nodebuffer"):this.ws.binaryType="arraybuffer",this.addEventListeners()}},r.prototype.addEventListeners=function(){var e=this;this.ws.onopen=function(){e.onOpen()},this.ws.onclose=function(){e.onClose()},this.ws.onmessage=function(t){e.onData(t.data)},this.ws.onerror=function(t){e.onError("websocket error",t)}},r.prototype.write=function(t){var r=this;this.writable=!1;for(var o=t.length,e=0,n=o;e<n;e++)!function(n){a.encodePacket(n,r.supportsBinary,function(t){var e;r.usingBrowserWebSocket||(e={},n.options&&(e.compress=n.options.compress),!r.perMessageDeflate||("string"==typeof t?Buffer.byteLength(t):t.length)<r.perMessageDeflate.threshold&&(e.compress=!1));try{r.usingBrowserWebSocket?r.ws.send(t):r.ws.send(t,e)}catch(t){u("websocket closed before onclose event")}--o||(r.emit("flush"),setTimeout(function(){r.writable=!0,r.emit("drain")},0))})}(t[e])},r.prototype.onClose=function(){s.prototype.onClose.call(this)},r.prototype.doClose=function(){void 0!==this.ws&&this.ws.close()},r.prototype.uri=function(){var t=this.query||{},e=this.secure?"wss":"ws",n="";return this.port&&("wss"==e&&443!==Number(this.port)||"ws"==e&&80!==Number(this.port))&&(n=":"+this.port),this.timestampRequests&&(t[this.timestampParam]=h()),this.supportsBinary||(t.b64=1),(t=c.encode(t)).length&&(t="?"+t),e+"://"+(-1!==this.hostname.indexOf(":")?"["+this.hostname+"]":this.hostname)+n+this.path+t},r.prototype.check=function(){return!(!f||"__initialize"in f&&this.name===r.prototype.name)}},function(t,e){},function(t,e){var r=[].indexOf;t.exports=function(t,e){if(r)return t.indexOf(e);for(var n=0;n<t.length;++n)if(t[n]===e)return n;return-1}},function(t,e,n){function r(t,e,n){this.io=t,this.nsp=e,(this.json=this).ids=0,this.acks={},this.receiveBuffer=[],this.sendBuffer=[],this.connected=!1,this.disconnected=!0,this.flags={},n&&n.query&&(this.query=n.query),this.io.autoConnect&&this.open()}var o=n(7),i=n(8),s=n(38),a=n(39),c=n(40),p=n(3)("socket.io-client:socket"),h=n(30),u=n(24);t.exports=r;var f={connect:1,connect_error:1,connect_timeout:1,connecting:1,disconnect:1,error:1,reconnect:1,reconnect_attempt:1,reconnect_failed:1,reconnect_error:1,reconnecting:1,ping:1,pong:1},l=i.prototype.emit;i(r.prototype),r.prototype.subEvents=function(){var t;this.subs||(t=this.io,this.subs=[a(t,"open",c(this,"onopen")),a(t,"packet",c(this,"onpacket")),a(t,"close",c(this,"onclose"))])},r.prototype.open=r.prototype.connect=function(){return this.connected||(this.subEvents(),this.io.reconnecting||this.io.open(),"open"===this.io.readyState&&this.onopen(),this.emit("connecting")),this},r.prototype.send=function(){var t=s(arguments);return t.unshift("message"),this.emit.apply(this,t),this},r.prototype.emit=function(t){if(f.hasOwnProperty(t))return l.apply(this,arguments),this;var e=s(arguments),n={type:(void 0!==this.flags.binary?this.flags.binary:u(e))?o.BINARY_EVENT:o.EVENT,data:e,options:{}};return n.options.compress=!this.flags||!1!==this.flags.compress,"function"==typeof e[e.length-1]&&(p("emitting packet with ack id %d",this.ids),this.acks[this.ids]=e.pop(),n.id=this.ids++),this.connected?this.packet(n):this.sendBuffer.push(n),this.flags={},this},r.prototype.packet=function(t){t.nsp=this.nsp,this.io.packet(t)},r.prototype.onopen=function(){var t;p("transport is open - connecting"),"/"!==this.nsp&&(this.query?(t="object"==typeof this.query?h.encode(this.query):this.query,p("sending connect packet with query %s",t),this.packet({type:o.CONNECT,query:t})):this.packet({type:o.CONNECT}))},r.prototype.onclose=function(t){p("close (%s)",t),this.connected=!1,this.disconnected=!0,delete this.id,this.emit("disconnect",t)},r.prototype.onpacket=function(t){var e=t.nsp===this.nsp,n=t.type===o.ERROR&&"/"===t.nsp;if(e||n)switch(t.type){case o.CONNECT:this.onconnect();break;case o.EVENT:case o.BINARY_EVENT:this.onevent(t);break;case o.ACK:case o.BINARY_ACK:this.onack(t);break;case o.DISCONNECT:this.ondisconnect();break;case o.ERROR:this.emit("error",t.data)}},r.prototype.onevent=function(t){var e=t.data||[];p("emitting event %j",e),null!=t.id&&(p("attaching ack callback to event"),e.push(this.ack(t.id))),this.connected?l.apply(this,e):this.receiveBuffer.push(e)},r.prototype.ack=function(e){var n=this,r=!1;return function(){var t;r||(r=!0,t=s(arguments),p("sending ack %j",t),n.packet({type:u(t)?o.BINARY_ACK:o.ACK,id:e,data:t}))}},r.prototype.onack=function(t){var e=this.acks[t.id];"function"==typeof e?(p("calling ack %s with %j",t.id,t.data),e.apply(this,t.data),delete this.acks[t.id]):p("bad ack %s",t.id)},r.prototype.onconnect=function(){this.connected=!0,this.disconnected=!1,this.emit("connect"),this.emitBuffered()},r.prototype.emitBuffered=function(){for(var t=0;t<this.receiveBuffer.length;t++)l.apply(this,this.receiveBuffer[t]);for(this.receiveBuffer=[],t=0;t<this.sendBuffer.length;t++)this.packet(this.sendBuffer[t]);this.sendBuffer=[]},r.prototype.ondisconnect=function(){p("server disconnect (%s)",this.nsp),this.destroy(),this.onclose("io server disconnect")},r.prototype.destroy=function(){if(this.subs){for(var t=0;t<this.subs.length;t++)this.subs[t].destroy();this.subs=null}this.io.destroy(this)},r.prototype.close=r.prototype.disconnect=function(){return this.connected&&(p("performing disconnect (%s)",this.nsp),this.packet({type:o.DISCONNECT})),this.destroy(),this.connected&&this.onclose("io client disconnect"),this},r.prototype.compress=function(t){return this.flags.compress=t,this},r.prototype.binary=function(t){return this.flags.binary=t,this}},function(t,e){t.exports=function(t,e){for(var n=[],r=(e=e||0)||0;r<t.length;r++)n[r-e]=t[r];return n}},function(t,e){t.exports=function(t,e,n){return t.on(e,n),{destroy:function(){t.removeListener(e,n)}}}},function(t,e){var r=[].slice;t.exports=function(t,e){if("string"==typeof e&&(e=t[e]),"function"!=typeof e)throw new Error("bind() requires a function");var n=r.call(arguments,2);return function(){return e.apply(t,n.concat(r.call(arguments)))}}},function(t,e){function n(t){t=t||{},this.ms=t.min||100,this.max=t.max||1e4,this.factor=t.factor||2,this.jitter=0<t.jitter&&t.jitter<=1?t.jitter:0,this.attempts=0}(t.exports=n).prototype.duration=function(){var t,e,n=this.ms*Math.pow(this.factor,this.attempts++);return this.jitter&&(t=Math.random(),e=Math.floor(t*this.jitter*n),n=0==(1&Math.floor(10*t))?n-e:n+e),0|Math.min(n,this.max)},n.prototype.reset=function(){this.attempts=0},n.prototype.setMin=function(t){this.ms=t},n.prototype.setMax=function(t){this.max=t},n.prototype.setJitter=function(t){this.jitter=t}}],n.c=o,n.p="",n(0);function n(t){if(o[t])return o[t].exports;var e=o[t]={exports:{},id:t,loaded:!1};return r[t].call(e.exports,e,e.exports,n),e.loaded=!0,e.exports}var r,o});