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  1. Moodle
  2. MDL-46748

Mathjax default SSL CDN address is down causing atto to fail to load

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    • MOODLE_27_STABLE
    • MOODLE_27_STABLE
    • MDL-46748-master
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      1. On a non-ssl site - change the admin setting "filter_mathjaxloader | httpurl" to a non-existent url.
      2. Go to a page with Atto on it - make sure Atto loads
      3. Open the equation editor and see that the latex is displayed raw (not turned into equations).
      4. Change the site to use SSL (https).
      5. Check that your site has "https://cdn.mathjax.org/mathjax/2.3-latest/MathJax.js" as the "filter_mathjaxloader | httpsurl" setting. (if it is new, it should be the default - if it is upgrade, the upgrade should have changed this setting).
      6. Open a page with Atto on it - make sure Atto loads
      7. Open the equation editor and see that the latex is turned into equations.
      8. Open the browser dev tools and check the mathjax files are loaded over https.
      Show
      On a non-ssl site - change the admin setting "filter_mathjaxloader | httpurl" to a non-existent url. Go to a page with Atto on it - make sure Atto loads Open the equation editor and see that the latex is displayed raw (not turned into equations). Change the site to use SSL (https). Check that your site has "https://cdn.mathjax.org/mathjax/2.3-latest/MathJax.js" as the "filter_mathjaxloader | httpsurl" setting. (if it is new, it should be the default - if it is upgrade, the upgrade should have changed this setting). Open a page with Atto on it - make sure Atto loads Open the equation editor and see that the latex is turned into equations. Open the browser dev tools and check the mathjax files are loaded over https.
    • 5
    • BACKEND Sprint 15

    Description

      I just noticed on Moodle.org that atto wouldn't load on an forum post page.

      It was failing to load https://c328740.ssl.cf1.rackcdn.com/mathjax/2.3-latest/MathJax.js

      Looks like that CDN url has gone. On the plus side it looks like they've got https on their normal cdn address now so I configured moodle.org to use https://cdn.mathjax.org/mathjax/2.3-latest/MathJax.js instead.

      But this caused atto to completely fail to load (and the repository) - so the failure is quite dramatic

      Steps to reproduce

      1. Disable tex filter, enable mathjax filter
      2. Set mathjax url to https://c328740.ssl.cf1.rackcdn.com/mathjax/2.3-latest/MathJax.js (or if that url starts working again, another broken url)
      3. Try and add a forum post

      Expected results

      • The atto editor loads and repository uploader loads
      • Mathjax is not available

      Actual results

      • The editor doesn't load
      • The repo picker doesn't load

      Attachments

        Issue Links

          has a non-specific relationship to

          Improvement - An enhancement to an existing Moodle feature. MDL-46759 Update MathJax to latest version before 2.8 is released.

          • Major - Major loss of function, incorrect output
          • Closed

          Improvement - An enhancement to an existing Moodle feature. MDL-47336 Filters do not Time Out

          • Minor - Minor loss of function where workaround is possible
          • Closed
          has been marked as being related by

          Task - A task that needs to be completed. Tasks usually refer to work that must be done outside the product. MDL-53572 We should get rid of filter_mathjaxloader/httpurl and always load over https

          • Minor - Minor loss of function where workaround is possible
          • Closed

          Task - A task that needs to be completed. Tasks usually refer to work that must be done outside the product. MDL-60209 Upgrade MathJax to 2.7.2 for Moodle 3.4 release

          • Minor - Minor loss of function where workaround is possible
          • Closed

          Activity

            People

              damyon Damyon Wiese
              poltawski Dan Poltawski
              Andrew Lyons Andrew Lyons
              Dan Poltawski Dan Poltawski
              Adrian Greeve Adrian Greeve
              David Woloszyn, Huong Nguyen, Jake Dallimore, Meirza, Michael Hawkins, Raquel Ortega, Safat Shahin, Stevani Andolo, David Woloszyn, Huong Nguyen, Jake Dallimore, Meirza, Michael Hawkins, Raquel Ortega, Safat Shahin, Stevani Andolo, David Woloszyn, Huong Nguyen, Jake Dallimore, Meirza, Michael Hawkins, Raquel Ortega, Safat Shahin, Stevani Andolo
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              Dates

                Created:
                Updated:
                Resolved:
                8/Sep/14