W3C validation errors
When you run a markup validation check (for example, using the W3C tool), some errors may refer markup added by WP Rocket.
Example of the error:
Error: Bad value rocketlazyloadscript for attribute type on element script: Subtype missing.
The rocketlazyloadscript
value is used for the Delay JavaScript Execution feature. It isn't an official value and this is why it is being reported in the test.
This markup error will not be causing any issues related to the site's accessibility, performance nor SEO.