TypeError: Failed to fetch when you update the source file

[dhruvdhody]

It is common to find errors in the source when using the tool, which requires one to go fix them and update the source file. But after the file is updated and you click on any of the buttons, it throws the error - TypeError: Failed to fetch!

Even choosing the file again or a refresh doesn't fix it!

I need to open the https://author-tools.ietf.org/ in a new tab to make it work!

Browser: Chrome