On the first page it states:
Based on customer feedback, we are reducing the number of diagnostics gathered at case submission time in order to improve performance. Your assigned Support engineer will ask you for those diagnostics they need for your specific issue.
Then why does it then attempt to load diagnostics?
I tried Cancel to the diagnostics install. Just the thing to do if you want to lose everything you entered.
When the install fails (IE blocks it) the resulting page states you can click on submit case to continue. Doing so takes you back to the original entry page.
The original text has a bunch of added characters, now putting it well over 1000 characters. Fixing it doesn't matter. Trying to continue is just continuing in a loop.
Enter text, submit, diags that fail, submit, reenter text, submit, diags that fail, you get it.
I'm going to try this from the server.