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  1. Moodle
  2. MDL-13716

HttpRequest 404 Error Handling

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.8.4
    • Fix Version/s: 1.8.6, 1.9.1
    • Component/s: SCORM
    • Labels:
      None
    • Environment:
      Windows XP SP2 + IE7
    • Database:
      MySQL
    • Affected Branches:
      MOODLE_18_STABLE
    • Fixed Branches:
      MOODLE_18_STABLE, MOODLE_19_STABLE

      Description

      File: /mod/scorm/api.php
      Include: /mod/scorm/datamodels/scorm_12.js.php
      Line: 546
      Error: Object doesn't support this property or method

      The value of variable 'result' is 404 (numeric). The call to split this number by line-break fails when the return code is the single number indicating file not found. This can be fixed by casting result to a string, leaving the errorCode variable undefined.

      results = String(result).split("\n");

      Note: The cause of this issue is the failure of the POST HTTP request, causing page redirection to return the response code 404 (even though an actual page is reached). I suspect this may be caused by session variable expiry, since the referenced /mod/scorm/datamodel.php file does exist. The error is more common when the server is under load, typically indicated by a longer time taking to return from the DoRequest() method.

      The return value of StoreData() function appears not to be used - which can result in the silent loss of student results!

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                Dates

                • Created:
                  Updated:
                  Resolved:
                  Fix Release Date:
                  15/May/08