Run tests does not finish

After I complete the coding problem and run tests my results are not posted and it does not go to the next lesson, I’m not sure what is happening.

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/64.0.3282.140 Safari/537.36 Edge/17.17134.

Link to the challenge:

I’ve seen this kind of posts recently, it might be a problem on FCC’s backend.

Try using Chrome if you aren’t, if it still doesn’t work, I would come back to it later.

Your suggestion worked.
Thank you