Running Drupal's cron fails when read only mode is enabled. It doesn't matter if it has been triggered via the browser or drush cron, I get the following error:
TypeError: _readonlymode_form_list_check(): Argument #2 ($list) must be of type array, string given, called in web/modules/contrib/readonlymode/readonlymode.module on line 227 in _readonlymode_form_list_check() (line 248 of web/modules/contrib/readonlymode/readonlymode.module).
This can happen when you put the site in read only mode to prevent users editing content while you do a deployment or perform other changes as admin and forget to temporarily stop the server cron job executing the sites cron. Another scenario is a site that synchronizes data with external sources (i. e. reading external data like currency exchange or stock rates) and during a deployment/update you want to make sure the external data is synchronized in and up-to-date before you let users change data, i. e. put items into their cart or do a checkout on commerce sites.
Allow cron tasks to execute while read only mode is enabled.
Postponed
1.1
Code
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