Bad Request error
When using an internal website I usually get an error when using Firefox:
Bad request Cannot parse token. root cause: Unable to decrypt bytes [ (then a bunch of numbers).
If I clear cookies this then it works for a while. If I use Chrome or Edge it usually works although sometimes I get something similar. The IT chaps insist it's a browser issue(of course). I'd rather not have to keep clearing cookies - any thoughts?
A Bad Request error is (almost) always caused by corrupted cookies that the server can't process.
Are you using security software or cleanup software that could be causing issues with the cookies ?
If clearing cookies didn't help then it is possible that the cookies.sqlite file in the Firefox profile folder that stores the cookies got corrupted.
- rename/remove cookies.sqlite (cookies.sqlite.old) and when present delete cookies.sqlite-shm and cookies.sqlite-wal in the Firefox profile folder with Firefox closed in case cookies.sqlite got corrupted.
You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.
- Help -> Troubleshooting Information -> Profile Folder/Directory:
Windows: Open Folder; Linux: Open Directory; Mac: Show in Finder