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  1. Moodle
  2. MDL-55916

Maintenance mode should serve a http 503 instead of a 200

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    • MOODLE_29_STABLE, MOODLE_30_STABLE, MOODLE_31_STABLE, MOODLE_32_STABLE
    • MOODLE_32_STABLE
    • MDL-55916-maintmode-503
    • Hide
      Note - To check for response code:
      1. Open your browser's developer tools, click on the Network tab.
      2. Reload the page.
      3. Select the resource that is being loaded (e.g. if you loaded http://[YOUR_MOODLE]/my/, select the entry for my/.
      4. Click on the Headers tab and inspect the Status Code, Status and Retry-After response headers.
      Testing procedure
      1. run php admin/cli/maintenance.php --enable, load any page and confirm it serves a 503
      2. php admin/cli/maintenance.php --disable, confirm 200 again
      3. php admin/cli/maintenance.php --enableold, load a deep link and confirm it serves a 503
      4. php admin/cli/maintenance.php --disable, confirm 200 again
      5. Put a site into maint mode from the gui, load a deep link in incognito mode and confirm it serves a 503
      Show
      Note - To check for response code: Open your browser's developer tools, click on the Network tab. Reload the page. Select the resource that is being loaded (e.g. if you loaded http://[YOUR_MOODLE]/my/ , select the entry for my/ . Click on the Headers tab and inspect the Status Code , Status and Retry-After response headers. Testing procedure run php admin/cli/maintenance.php --enable, load any page and confirm it serves a 503 php admin/cli/maintenance.php --disable, confirm 200 again php admin/cli/maintenance.php --enableold, load a deep link and confirm it serves a 503 php admin/cli/maintenance.php --disable, confirm 200 again Put a site into maint mode from the gui, load a deep link in incognito mode and confirm it serves a 503

    Description

      Plenty of good articles for why this is better eg:

      http://stackoverflow.com/questions/2786595/what-is-the-correct-http-status-code-to-send-when-a-site-is-down-for-maintenance

      This is especially important for big sites with lots of publicly available and indexed pages so that google never crawls these and gets the outage page and indexes it.

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              brendanheywood Brendan Heywood
              brendanheywood Brendan Heywood
              Jun Pataleta Jun Pataleta
              Dan Poltawski Dan Poltawski
              Simey Lameze Simey Lameze
              David Woloszyn, Huong Nguyen, Jake Dallimore, Meirza, Michael Hawkins, Raquel Ortega, Safat Shahin, Stevani Andolo
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              Dates

                Created:
                Updated:
                Resolved:
                5/Dec/16