[Plugin: WP Super Cache] Compatibility with PHP 5.4 ?

No idea when I’m afraid as this is the first I’ve heard of this happening. If you can figure out what’s causing the error it would be invaluable information. I don’t have PHP 5.4 installed so I can’t test it right now.

Take a look at your PHP error log, and make sure errors are getting logged.

Hmm. Not much in there, only this:

Premature end of script headers: php54.cgi, referer: https://xxxxxx/wp-admin/index.php

Do think it’s the PHP 5.4 implentation on the server that is wrong?

I’m getting the same issue on one of my sites.

Here’s the error:
Premature end of script headers: php54.cgi, referer: https://xxxxxxxxxxx.com/wp-admin/options-general.php?page=wpsupercache

Has there been any further progress on this?

Not by me as I use mod_php and don’t have a php-cgi environment to test with, sorry.