Is it possible for the client to prevent the blocking of the Cross-Origin Resource Sharing (CORS) error?

I am encountering an issue with my web app that involves CORS operations when making $.getJSON AJAX calls. Typically, this functions properly on most client browsers due to the server having CORS enabled. However, I recently discovered that when using IE 11 in a strict security corporate environment, my CORS attempts are failing with the following error:

If the image is not visible, there are several errors:

One being SEC7118 (CORS operation),
Another being SEC7127 (Redirect was blocked), and 
Lastly Script7002 (XMLHTTPRequest: Network error 0x2ef1).

Could it be possible for a client network to prevent CORS operations?

javascriptajax

Answer №1

Absolutely! The IT network within a company has the ability to restrict access to various websites, potentially leading to an overly aggressive firewall removing CORS headers (aka "unknown data") from HTTP requests/responses.

Answer №2

I encountered a small error in my AngularJS application that involved the use of directives. Thankfully, I was able to resolve it with a simple solution.

All I had to do was create a file called staticwebapp.config.json in the root directory of the repository and add the following configuration:

{
  "globalHeaders": {
    "Access-Control-Allow-Origin": "*",
    "Access-Control-Allow-Methods": "GET, OPTIONS"
  }
}

After publishing the application and running some tests, I am happy to report that the issue has been successfully resolved! If you'd like to see how my AngularJS project is structured, check out the link below:

https://i.stack.imgur.com/Tv44F.png

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