litespeed-dummy removal – incorrect regex

Like lots of other reports, I have an unwanted and empty wp-content/plugins/litespeed-cache/assets/css/litespeed-dummy.css being served.

I am on v7.9.1 of the LiteSpeed WordPress plugin and I cannot see any option to remove or disable it.

The exact HTML code being injected is

<link href="https://example.blog/wp-content/plugins/litespeed-cache/assets/css/litespeed-dummy.css?ver=7.1" id=litespeed-cache-dummy-css media=all rel=stylesheet>

The problem is caused by your regex

<link [ \w='\"/-]*id=['\"]litespeed-cache-dummy-css['\"][ \w='\"/-]*href=['\"].+assets/css/litespeed-dummy\.css[?\w.=-]*['\"][ \w='\"/-]*>#isU

It is expecting a specific order – the ID first – and that the ID is surrounded with quotes.

Trying to parse HTML using a regular expression is not a good idea. But, if you must, I suggest just searching for the ID string rather than assuming it is in a specific order. This should work:

<link[^>]*litespeed-cache-dummy-css[^>]*>

Report CLQEEGAV

• This topic was modified 4 hours, 8 minutes ago by Terence Eden.