We have a custom issue collector that we have used for several years. It stopped working in Chrome several weeks ago. We get the "Oops! Something went wrong..." when clicking on Submit and a 404 error on the POST. Firefox and Edge work fine.
I have Chrome Version 80.0.3987.162. I believe that we are third-party, self-hosted. We updated the script tags in our HTML file. Below is browser console and network console output screenshots. I have Googled and found similar issues but not the same. Tried the suggestions to disable plug-ins and clear cache; still get the error. I created a standard issue collector instead of custom and get the same error.
The error is different in Chrome Canary Version 83.0.4101.0; I get an Uncaught TypeError: Cannot read property 'attachment_error' of null.
Chrome browser console error:
Chrome network output:
Chrome Canary console error:
