PHP Warning: Cannot modify header information – headers already sent

Viewing 5 replies - 1 through 5 (of 5 total)
  • Plugin Contributor Marko Vasiljevic

    (@vmarko)

    Hello @kmrsolutions

    Thank you for reaching out and I am happy to assist you with this.

    As you can see we have not received a reply in the post you are mentioning. So as I asked there, can you please share if you’ve enabled the User Agent Groups in Performance>Cookie groups, and if so, please share the screenshot of the settings? You can also try disabling the User Agent Groups, save all settings and purge the cache and let me know if the problem persists.

    Thanks!

    Thread Starter kmrsolutions

    (@kmrsolutions)

    please see attached screenshot of the settings.

    i will test turning it off tomorrow

    Regards

    Kevin

    Plugin Contributor Marko Vasiljevic

    (@vmarko)

    Hello @kmrsolutions

    You are using both Cookie Groups and User Agent Groups for the mobile cache. Can you please disable the Cookie group for Mobile save all settings and purge the cache and see if the problem persists?

    Thanks!

    Thread Starter kmrsolutions

    (@kmrsolutions)

    Marko,

    thanks for the reply.
    i have disabled the cookie groups and purged all cache but im still getting the error message.

    Plugin Contributor Marko Vasiljevic

    (@vmarko)

    Hello @kmrsolutions

    Thank you for your feedback

    This may happen when something prints something before W3TC starts pushing content out. Possibly some warning or similar or some other plugin pushes content before us like AMP.
    Check without caching – if there is a warning output.

    Thanks!

Viewing 5 replies - 1 through 5 (of 5 total)
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