W3 total cache – invalid regex

Posted on September 17, 2021 by

Tagged: Configuration

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September 17, 2021 at 8:16 am #42866

Karl
Guest

Hello, on local host, I have debug configured to be TRUE in wp-config.

With W3 Total Cache active, I see this message:

Warning: preg_match(): Compilation failed: quantifier does not follow a repeatable item at offset 0 in C:\wwwroot\fin-calcs4\wp-content\plugins\w3-total-cache\PgCache_ContentGrabber.php on line 952

Version 2.1.8 | By BoldGrid | View details

September 17, 2021 at 8:47 am #42872

Marko Vasiljevic
Keymaster

Hello Karl,

Thank you for your question and I am happy to assist you with this.

It seems you have an invalid regex in Performance>Page Cache>Advanced>”Never Cache following pages” filed.
Can you please share which URis are excluded from page caching in that field?
Thanks!

September 17, 2021 at 11:19 am #42873

Karl
Guest

Thanks for the reply Marko.

I don’t think I’ve added any. Here’s what’s there:

wp-.*\.php
index\.php
*?tve=true
*?cpo_options=1
*?et_fb=1

September 17, 2021 at 11:21 am #42879
Marko Vasiljevic
Keymaster
Hello Karl,
```
wp-.*\.php
index\.php
```
These are default values. W3 Total Cache does not cache pages with query strings by default so you should remove the following:
```
*?tve=true
*?cpo_options=1
*?et_fb=1
```
Make sure to save all settings and purge the cache once the lines above are removed.
Thanks!
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