"JSON" - undefined

Question

I am trying to load a Chromecast background website into aC # WebBrowser , but I get:

I assumed this is happening because the webbrowser uses IE7 by default (?), Which may not work well with JS on the website. I tried updating the FEATURE_BROWSER_EMULATION register to 9000, hoping to get the webbrowser use the IE9 platform. But I still get the same errors.

Is webbrowser basic for this task or is there a way to solve this problem?

EDIT:

So, when I print webbrowser.version , I get: Version: 11.0.9600.16518. What current version of IE do I have. If I open IE11 and go to the URL, its work will be great. I do not know why a problem with webbroswer occurs.

I tried injecting JSON Parser into a webpage using this code:

 HtmlDocument doc = webBrowser1.Document; Console.WriteLine(doc); HtmlElement head = doc.GetElementsByTagName("head")[0]; HtmlElement s = doc.CreateElement("script"); s.SetAttribute("type", "text/javascript"); s.SetAttribute("src", "http://192.168.1.23:10000/JSON-js-master/json2.js"); head.AppendChild(s); 

I tried using local and external ips referring to the host file. It seems the difference has not changed.

Answer 1

Apparently, when the WebBrowser control starts, it starts in the version of IE installed on the computer, but it works in IE7 compatibility mode. Downloading the link you provided requires a more modern browser. Essentially, the requested page requires IE10 or higher.

You need to change the browser emulation settings in the registry so that WebBrowser users use a more modern set of IE functions:

Internet feature management

As you said in your question, there are two areas in the registry that you need to configure:

HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Internet Explorer \ Main \ FeatureControl \ FEATURE_BROWSER_EMULATION

HKEY_LOCAL_MACHINE \ SOFTWARE \ Wow6432Node \ Microsoft \ Internet Explorer \ Main \ FeatureControl \ FEATURE_BROWSER_EMULATION

In each of these two places, the process name of your applications is included in the DWORD value set indicating the compatibility level. Specific values ​​are on the Manage Internet Features help page. The file names are the name of your application "MyApplication1.exe", or if you are working in Visual Studio, this is "MyApplication1.vshost.exe".

Since I have IE 11 installed, I set the browser emulation setting to 11001 and worked on your linked web page.