diff --git a/include/capi/cef_frame_capi.h b/include/capi/cef_frame_capi.h
index c13a98dfb..692464ef8 100644
--- a/include/capi/cef_frame_capi.h
+++ b/include/capi/cef_frame_capi.h
@@ -131,7 +131,9 @@ typedef struct _cef_frame_t {
       const cef_string_t* url);
 
   ///
-  // Load the contents of |string_val| with the optional dummy target |url|.
+  // Load the contents of |string_val| with the specified dummy |url|. |url|
+  // should have a standard scheme (for example, http scheme) or behaviors like
+  // link clicks and web security restrictions may not behave as expected.
   ///
   void (CEF_CALLBACK *load_string)(struct _cef_frame_t* self,
       const cef_string_t* string_val, const cef_string_t* url);
diff --git a/include/capi/cef_scheme_capi.h b/include/capi/cef_scheme_capi.h
index 8eea0201c..f124d745c 100644
--- a/include/capi/cef_scheme_capi.h
+++ b/include/capi/cef_scheme_capi.h
@@ -140,11 +140,12 @@ typedef struct _cef_scheme_handler_factory_t {
   cef_base_t base;
 
   ///
-  // Return a new resource handler instance to handle the request. |browser| and
-  // |frame| will be the browser window and frame respectively that originated
-  // the request or NULL if the request did not originate from a browser window
-  // (for example, if the request came from cef_urlrequest_t). The |request|
-  // object passed to this function will not contain cookie data.
+  // Return a new resource handler instance to handle the request or an NULL
+  // reference to allow default handling of the request. |browser| and |frame|
+  // will be the browser window and frame respectively that originated the
+  // request or NULL if the request did not originate from a browser window (for
+  // example, if the request came from cef_urlrequest_t). The |request| object
+  // passed to this function will not contain cookie data.
   ///
   struct _cef_resource_handler_t* (CEF_CALLBACK *create)(
       struct _cef_scheme_handler_factory_t* self,
diff --git a/include/capi/cef_trace_capi.h b/include/capi/cef_trace_capi.h
index f17fe5c40..01f8970dc 100644
--- a/include/capi/cef_trace_capi.h
+++ b/include/capi/cef_trace_capi.h
@@ -69,7 +69,7 @@ CEF_EXPORT int cef_begin_tracing(struct _cef_trace_client_t* client,
 // Get the maximum trace buffer percent full state across all processes.
 //
 // cef_trace_client_t::OnTraceBufferPercentFullReply will be called
-// asynchronously after the value is determibed. When any child process reaches
+// asynchronously after the value is determined. When any child process reaches
 // 100% full tracing will end automatically and
 // cef_trace_client_t::OnEndTracingComplete will be called. This function fails
 // and returns false (0) if trace is ending or disabled, no cef_trace_client_t
diff --git a/include/cef_frame.h b/include/cef_frame.h
index 872e01a61..adba66f1e 100644
--- a/include/cef_frame.h
+++ b/include/cef_frame.h
@@ -139,7 +139,9 @@ class CefFrame : public virtual CefBase {
   virtual void LoadURL(const CefString& url) =0;
 
   ///
-  // Load the contents of |string_val| with the optional dummy target |url|.
+  // Load the contents of |string_val| with the specified dummy |url|. |url|
+  // should have a standard scheme (for example, http scheme) or behaviors like
+  // link clicks and web security restrictions may not behave as expected.
   ///
   /*--cef()--*/
   virtual void LoadString(const CefString& string_val,
diff --git a/include/cef_scheme.h b/include/cef_scheme.h
index 58eae5f69..a32a3b690 100644
--- a/include/cef_scheme.h
+++ b/include/cef_scheme.h
@@ -142,11 +142,12 @@ class CefSchemeRegistrar : public virtual CefBase {
 class CefSchemeHandlerFactory : public virtual CefBase {
  public:
   ///
-  // Return a new resource handler instance to handle the request. |browser|
-  // and |frame| will be the browser window and frame respectively that
-  // originated the request or NULL if the request did not originate from a
-  // browser window (for example, if the request came from CefURLRequest). The
-  // |request| object passed to this method will not contain cookie data.
+  // Return a new resource handler instance to handle the request or an empty
+  // reference to allow default handling of the request. |browser| and |frame|
+  // will be the browser window and frame respectively that originated the
+  // request or NULL if the request did not originate from a browser window
+  // (for example, if the request came from CefURLRequest). The |request| object
+  // passed to this method will not contain cookie data.
   ///
   /*--cef(optional_param=browser,optional_param=frame)--*/
   virtual CefRefPtr<CefResourceHandler> Create(
diff --git a/include/cef_trace.h b/include/cef_trace.h
index 5346c367a..a2cf2966c 100644
--- a/include/cef_trace.h
+++ b/include/cef_trace.h
@@ -99,7 +99,7 @@ bool CefBeginTracing(CefRefPtr<CefTraceClient> client,
 // Get the maximum trace buffer percent full state across all processes.
 //
 // CefTraceClient::OnTraceBufferPercentFullReply will be called asynchronously
-// after the value is determibed. When any child process reaches 100% full
+// after the value is determined. When any child process reaches 100% full
 // tracing will end automatically and CefTraceClient::OnEndTracingComplete
 // will be called. This function fails and returns false if trace is ending or
 // disabled, no CefTraceClient was passed to CefBeginTracing, or if a previous