Media Library seems to break

[coderste]

In WordPress 4.4.2 the media library seems to break completely if I set WP_DEBUG to true - is this the normal behaviour for this?

Once I disable WP_DEBUG it seems to work just fine and all the images I have uploaded are displayed - this is quite annoying having to turn it off while debugging a feature on my theme.

[ocean90]

Hello @coderste, that's probably because of a PHP warning caused by one of your plugins or a theme which corrupts the XHR response. [36571] will fix this by suppressing the errors.
Can you test if it still happens in ​RC2 of WordPress 4.5?

[coderste]

Replying to ocean90:

Hello @coderste, that's probably because of a PHP warning caused by one of your plugins or a theme which corrupts the XHR response. [36571] will fix this by suppressing the errors.
Can you test if it still happens in ​RC2 of WordPress 4.5?

I have restored back to the default theme and disabled all Plugins and I seem to get the same result while in debug mode I can not access the media library

[coderste]

Replying to ocean90:

Hello @coderste, that's probably because of a PHP warning caused by one of your plugins or a theme which corrupts the XHR response. [36571] will fix this by suppressing the errors.
Can you test if it still happens in ​RC2 of WordPress 4.5?

I've tested this in 4.5 and while in debug mode the media library does work - I can it was just a 4.4 bug

[ocean90]

Duplicate of #26262.

Thanks for testing!

For your 4.4 install I suggest to inspect the response of the XHR request in your browser. Should be visible in the network tab of the developer tools.