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  1. Moodle
  2. MDL-72271

Clicking "Finish Review" after a quiz set to Full screen popup with Javascript security results in a 404 to /mod/quiz/0 if not in a popup window

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Details

    • Bug
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • 3.9.8, 3.9.9, 3.10.5, 3.10.6, 3.11.1, 3.11.2
    • 3.10.7, 3.11.3
    • Quiz

    Description

      This is a reopen of MDL-70144.

      Steps to reproduce:

      1. Create a quiz with the "Browser security" option set to "Full screen popup with some Javascript security"
      2. Start a quiz attempt as a student
      3. Copy the URL from the popup window and open it in a new tab in the main browser window
      4. Finish the quiz and click "Finish Review" after reviewing the quiz attempt

      What I expected:

      Redirection to the main quiz page with the summary of previous attempts.

      What actually happens:

      Redirection to /mod/quiz/0 resulting in a 404 error.

      Suspected cause:

      In mod/quiz/module.js:285 the close function of the secure window is called without the first parameter "Y", causing the other parameters to be misinterpreted. Specifically, the delay of 0 gets passed as the url, which is why we are redirected to /mod/quiz/0.

      This issue affects many students on our Moodle site (>50% of quiz participants), most of whom definitely didn't manually open the URL from the popup window in another tab. I suspect that this is caused by their browsers blocking the popup window and opening the quiz in a new tab instead.

      I will attach a proposed solution (removing the parameter "Y" from the close function) shortly.

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              bonczek Lars Bonczek
              bonczek Lars Bonczek
              Tim Hunt Tim Hunt
              Andrew Lyons Andrew Lyons
              Gladys Basiana Gladys Basiana
              Tim Hunt, Ilya Tregubov, Kevin Percy, Mathew May, Mihail Geshoski, Shamim Rezaie
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              Dates

                Created:
                Updated:
                Resolved:
                13/Sep/21

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