In Drupal 7.63, I am trying to add a new rule, however I am being greeted with a WSOD. I am doing the following process...

  1. Create a new Rule
  2. Add condition
  3. Select any condition from the drop down list

I then receive a WSOD with the following error in my browser console log:

enter image description here

Preceded by the warning:

[Deprecation] Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.

I can see that other people have had this error in the past here, however I cannot see a solution to this. Similar to the referenced link I also have Advanced CSS/JS Aggregation installed (defaulted to jQuery 1.4.4).

Any help would be appreciated.

  • Are you using the advagg contrib module? – No Sssweat Feb 6 at 15:11
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    You can't be getting a WSOD and errors in the javascript console at the same time, and the JS errors be related to Drupal. A WSOD is literally a text string (or an empty string), no HTML (script tags), so that jQuery must be executed by a browser plugin or something else – Clive Feb 6 at 15:29
  • @NoSssweat - Yes I am using the advagg module. I've left the JQuery version to the default 1.4.4 – ernie Feb 6 at 15:58
  • @Clive - There is no problem with anywhere else on the site, and there is a Drupal refrerence in the callstack of the javascript error. I've tried this is Firefox and Chrome and I get an error in both, with a whitescreen. – ernie Feb 6 at 16:02
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    Sure, I was just letting you know that what you're looking at can't be a WSOD if that's the case. If the HTML source is there, and the JS etc is being loaded, but the page is completely white, then it's either a CSS/JS problem, or something wrong with your theme. But I doubt anyone would be able to identify what this is from here, you'd need access to the code to test it properly – Clive Feb 6 at 16:11

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