Fix search provider

src/endpoints/search.js

@@ -147,25 +147,36 @@ router.post('/searxng', jsonParser, async (request, response) => {
 
         console.log('SearXNG query', baseUrl, query);
 
-        const url = new URL(baseUrl);
+        const mainPageUrl = new URL(baseUrl);
-        const params = new URLSearchParams();
+        const mainPageRequest = await fetch(mainPageUrl, { headers: visitHeaders });
-        params.append('q', query);
-        params.append('format', 'html');
-        url.pathname = '/search';
-        url.search = params.toString();
 
-        const result = await fetch(url, {
+        if (!mainPageRequest.ok) {
-            method: 'POST',
+            console.log('SearXNG request failed', mainPageRequest.statusText);
-            headers: visitHeaders,
-        });
-
-        if (!result.ok) {
-            const text = await result.text();
-            console.log('SearXNG request failed', result.statusText, text);
             return response.sendStatus(500);
         }
 
-        const data = await result.text();
+        const mainPageText = await mainPageRequest.text();
+        const clientHref = mainPageText.match(/href="(\/client.+\.css)"/)?.[1];
+
+        if (clientHref) {
+            const clientUrl = new URL(clientHref, baseUrl);
+            await fetch(clientUrl, { headers: visitHeaders });
+        }
+
+        const searchUrl = new URL('/search', baseUrl);
+        const searchParams = new URLSearchParams();
+        searchParams.append('q', query);
+        searchUrl.search = searchParams.toString();
+
+        const searchResult = await fetch(searchUrl, { headers: visitHeaders });
+
+        if (!searchResult.ok) {
+            const text = await searchResult.text();
+            console.log('SearXNG request failed', searchResult.statusText, text);
+            return response.sendStatus(500);
+        }
+
+        const data = await searchResult.text();
         return response.send(data);
     } catch (error) {
         console.log('SearXNG request failed', error);