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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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    taowang
    wrote on last edited by
    #8
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      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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              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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                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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                  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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                      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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