Check OpenExternalWebBrowser custom flag better (#674)

Properly check string prefix to see if we should open it in browser

primedev/scripts/client/scriptbrowserhooks.cpp

@@ -9,7 +9,8 @@ void, __fastcall, (char* pUrl, char flags))
 // clang-format on
 {
 	bool bIsOriginOverlayEnabledOriginal = *bIsOriginOverlayEnabled;
-	if (flags & 2 && !strncmp(pUrl, "http", 4)) // custom force external browser flag
+	bool isHttp = !strncmp(pUrl, "http://", 7) || !strncmp(pUrl, "https://", 8);
+	if (flags & 2 && isHttp) // custom force external browser flag
 		*bIsOriginOverlayEnabled = false; // if this bool is false, game will use an external browser rather than the origin overlay one
 
 	OpenExternalWebBrowser(pUrl, flags);