Missing parameter cmid after using the browser's back button

[davidszkiba]

Hi Vitaly!

We came across the following issue: When using the browser's back button during a quiz attempt, the following happens:

• I'm seeing the first question again
• After answering it, I get a message that I should not use the browser's back button.
• When I press "Continue" on that message, the browser tries to load the page with URL /mod/adaptivequiz/attempt.php? and I get an error about a missing cmid parameter.
• Clicking "Continue" on that last message leads to an endless loop reloading the same page again.

However, browsing to the quiz via the menu/navigation and resuming the quiz attempt works just fine.

Do you think it would be possible to somehow get rid of the error about the missing cmid and continue the started attempt the same way as when browsing to the attempt via the menu?

[vtos]

@davidszkiba Hi David, missed this one, sorry. But off the top of my head - it's challenging to track it down, as it's related to the plugin's legacy code, which we still rely upon much. I'll keep that one in my radar, as it should be addressed at some point anyway, at least to confirm whether there's something we can fix there. Keep watching this issue, I'll post my findings (if any) here. Cheers!