I found out this was because the Pardot plugin has a dependency on the PHP-XML module which it doesn’t test for but just fails silently.
That’s wild, @tappetyclick. Thank you for reporting.
Would you mind passing along the error message you found?
Hi Cliff
I just see a weird screen https://pasteboard.co/I8fzGdK.png no error message
Sorry, let me clarify: how did you know it was related to the PHP-XML module?
I’m having the same issue, here is the PHP error output:
[12-Jul-2019 18:12:11 UTC] PHP Fatal error: Uncaught Error: Maximum function nesting level of '256' reached, aborting! in /Users/me/example.com/htdocs/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php:92
Stack trace:
#0 /Users/me/example.com/htdocs/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php(92): ArrayIterator->__construct(Array)
#1 /Users/me/example.com/htdocs/wp-includes/Requests/Cookie.php(229): Requests_Utility_CaseInsensitiveDictionary->getIterator()
#2 /Users/me/example.com/htdocs/wp-includes/Requests/Cookie.php(84): Requests_Cookie->normalize()
#3 /Users/me/example.com/htdocs/wp-includes/Requests/Cookie.php(423): Requests_Cookie->__construct('pardot', 'f62g94182jrlq23...', Object(Requests_Utility_CaseInsensitiveDictionary), Array, NULL)
#4 /Users/me/example.com/htdocs/wp-includes/Requests/Cookie.php(442): Requests_Cookie::parse('pardot=f62g9418...', 'pardot', NULL)
#5 /Users/me/example.com/htdocs/wp-inclu in /Users/me/example.com/htdocs/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 92
For me clicking on the link to open the Customizer just hangs/times out.
Thanks, @cr0ybot! So, when you disable the Pardot plugin, this issue goes away?