Say Hello to HTML Elements Stuck in // running test

Tell us what’s happening:
Hello all. I just came across this website and decided to go through the html/css coursework. I seem to be having problems though. I know the code I gave is what they want. It seems that every time I test the code that it gets stuck in “// running test” Any help would be awesome!

Your code so far


<h1>Hello World</h1>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299.

Link to the challenge:
https://learn.freecodecamp.org/responsive-web-design/basic-html-and-html5/say-hello-to-html-elements

Oddly enough when I switched web browsers (from edge to firefox) it worked perfectly fine!

I am having the same problem on Microsoft edge. On chrome it works fine. Is there a compatibility issue?