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  1. Moodle app
  2. MOBILE-2677

Moodle Mobile iOS - can't load local files via AJAX because XHR.status returns always 0

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Details

    • Bug
    • Resolution: Won't Fix
    • Minor
    • None
    • 3.5.2
    • Ionic, iOS
    • Hide
      1. Using mobile master site
      2. Navigate to dev testing course > Scorms > MOBILE-2677 activity.
      3. Enter the Scorm and navigate to "TEST HERE" section.
      4. Scroll down to the video and play it.
      5. Check video playback stops and subtitles are shown.
      Show
      Using mobile master site Navigate to dev testing course > Scorms > MOBILE-2677 activity. Enter the Scorm and navigate to "TEST HERE" section. Scroll down to the video and play it. Check video playback stops and subtitles are shown.
    • MOODLE_35_STABLE

    Description

      The situation
      In the Moodle mobile app on iOS video captions are not shown. In the browser and in the Moodle desktop app (macOS) the captions are shown.

      Some background
      In a client's WBT videos are handled with MediaElement.js http://www.mediaelementjs.com/. In the videos captions are used. The caption files are loaded via AJAX by the MediaElement library.

      The reason
      Cordova for iOS uses WKWebView to display the content. The Moodle app downloads the content to the device and serves the files locally. Due to iOS CORS restrictions the XHR.status result for local files which are requested via AJAX is always 0 - even if the XHR.responseText holds the correct caption text.

      Ionic WKWebView page
      https://ionicframework.com/docs/wkwebview/

      Support serving local content with WKURLSchemeHandler
      Discussion on https://github.com/apache/cordova-ios/issues/415

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            Unassigned Unassigned
            urshunkler Urs Hunkler
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            Dates

              Created:
              Updated:
              Resolved:

              Clockify

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