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  2. Moodle
  3. Moodle Bug: Unable to inject <script>javascript code</script> in blocks or course activities

Moodle Bug: Unable to inject <script>javascript code</script> in blocks or course activities

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  • T Offline
    T Offline
    taowang
    wrote on last edited by
    #9

    But these errors are not related to the injection problem.

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    • nebulonN nebulon marked this topic as a question on
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      nebulon
      Staff
      wrote on last edited by
      #10

      Those errors seem more like a moodle internal problem and possibly bugs worth reporting upstream unless those come from some of the custom code snippets.

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      • nebulonN nebulon

        Those errors seem more like a moodle internal problem and possibly bugs worth reporting upstream unless those come from some of the custom code snippets.

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        taowang
        wrote on last edited by
        #11

        @nebulon yes those bugs are related to my other code snippets, not related to moodle core. The chatbot code itself does not have bugs, because I test it on fresh new moodle instances.

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          taowang
          wrote on last edited by
          #12

          I recorded a video to demonstrate the issue.

          https://images.riverhill.ai/王韬·江山学府 2024-08-08 18.34.48.mp4

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          • T Offline
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            taowang
            wrote on last edited by
            #13

            After deeper investigation, it is likely related to CSP.
            But I don't know how the moodle demo site sets its CSP to allow script and css injection directly into course pages.

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            • J Offline
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              joseph
              Staff
              wrote on last edited by
              #14

              @taowang there are browser extensions that allow you to disable CSP. Maybe you can quickly check with those if that is the issue?

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              • T Offline
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                taowang
                wrote on last edited by
                #15

                @joseph
                I just tested the following 4 csp blockers but did not work.
                The chatbot is still not showing up.
                I am not sure if these plugins are actually good quality.
                Some comments say it works, while other say it doesn't work.

                https://chromewebstore.google.com/detail/disable-content-security/ieelmcmcagommplceebfedjlakkhpden
                https://chromewebstore.google.com/detail/anti-cors-anti-csp/fcbmpcbjjphnaohicmhefjihollidgkp
                https://chromewebstore.google.com/detail/allow-csp-content-securit/hnojoemndpdjofcdaonbefcfecpjfflh
                https://chromewebstore.google.com/detail/csp-unblock/lkbelpgpclajeekijigjffllhigbhobd

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                  joseph
                  Staff
                  wrote on last edited by
                  #16

                  @taowang I tested from your video. From the browser's source it seems that the links are convereted into a tags. In Page -> More -> Filter, if you set "Convert URLs into links and images" to Off, something loads. I can send Hi to chatbot and it returns something.

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                  • T Offline
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                    taowang
                    wrote on last edited by taowang
                    #17

                    OMG it worked!!!! Thank you very much.

                    Here is a site-wide config for all course pages:

                    1. go to site administration > plugins
                    2. press command + 5 to search for "Convert URLs into links and images"
                    3. click on settings and toggle off the HTML format
                    4. use HTML format when injecting code with urls
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                      taowang
                      wrote on last edited by
                      #18

                      image.png

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