Support » Plugin: HandL UTM Grabber / Tracker » PHP Warning

  • Resolved John


    Hello guys! How’re you doing?

    Please, I’m getting hundreds of PHP Warnings in debug.log:

    [29-Dec-2019 13:49:07 UTC] PHP Warning: Cannot modify header information – headers already sent in …/public_html/wp-content/plugins/handl-utm-grabber/handl-utm-grabber.php on line 52

    Does anyone here already experienced this?

    WordPress 5.3.2. Multisite installation. Hosted on (Amazon server).
    HandL UTM Grabber version 2.7.1.

    Thank you!!

Viewing 2 replies - 1 through 2 (of 2 total)
  • Hey! Any movement on this? The warnings are filling up my logs too

    Plugin Author Haktan Suren


    Hi @jemoreto ,

    you should not see such errors in normal scenario. I think there is either other pluginor your theme might be causing this unexpected warning. For setting the cookie, plugin is using init hook. By the definition (, there should be no other headers sent/printed before this hook in a good practice. But apparently, in your case, something gets printed before the init hook. I recommend you to disable the plugins one by one to find out what causing it. Or try switching the theme as well.

    @citywanderer please see the answer as well.

Viewing 2 replies - 1 through 2 (of 2 total)
  • The topic ‘PHP Warning’ is closed to new replies.