Hello. I am having an issue on Firefox and some Google computers that throw an error. Edge and opera work fine. “The response data is missing from the ajax request.”
I looked through your documentation and added the line to WPRocket and also checked the Ajax handler, but it is still happening.
Thanks for the details. I could not trigger the error, as some scripts on the home page are not initialized due to an error on the console: https://i.imgur.com/rhwQRYV.png
It is caused by a 3rd party script, because it is defered, but the inline sript afterwards tries to get a variable from the defered script, which does not exist yet. Try turning off the script defer option in WP rocket, it may resolve this issue, as well as others, and hopefully the one with the search script too.