Warning: Can not modify header information

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    Hello, I installed Hummingbird on my test server no problem but lorce that I activate caching on the main server i get: Warning: preg_match (): Unknown edit ‘7’ in xxxxx / Takeit / wp- content / plugins / hummingbird-performance / core / modules / module-module-page-cache.php on line 584
    Warning: Can not modify header information – headers already sent by (output started at xxxxx / Takeit / wp-content / plugins / hummingbird-performance / core / modules / class-module-page-cache.php: 584) in xxxxx / Takeit / wp-content / plugins / wptouch / core / cache.php on line 52
    …
    (see the screenshot to read the 6 errors)

    Environment:
    apache server
    WP 5.2
    php 7.2
    WP Touch (free version)
    Usually autoptimize but disabled today to see if there is no conflict with your plugin (spoil: no change)
    Really Simple SSL
    SSL Insecure Content Fixer

    Thank you very much in advance for the help you will give me and thank you for your great plugin, it should be better known.

    The page I need help with: [log in to see the link]

Viewing 7 replies - 1 through 7 (of 7 total)

  • Hi @jbc66,

    Could you please post the content of your User agents exclusion list (Hummingbird – Caching – Page Caching – Exclusions)?

    Best regards,
    Anton

    Thread Starter Jean-Baptiste

    (@jbc66)

    Hi @vanyukov
    my user agents exclusion list : 

    
iPhone
iPod
Android
BB10
BlackBerry
webOS
IEMobile/7.0
IEMobile/9.0
IEMobile/10.0
MSIE 10.0
iPad
PlayBook
Xoom 
P160U
SCH-I800
Nexus 7
Touch
    • This reply was modified 5 years, 10 months ago by Jean-Baptiste.

    It looks like a known bug. Could you please try to remove all items with spaces (MSIE 10.0 and Nexus 7) and see if that resolves the issue?

    Best regards,
    Anton

    Thread Starter Jean-Baptiste

    (@jbc66)

    This does not solve the problem with

    `
    iPhone
    iPod
    Android
    BB10
    BlackBerry
    webOS
    IEMobile/7.0
    IEMobile/9.0
    IEMobile/10.0
    iPad
    PlayBook
    Xoom
    P160U
    SCH-I800
    Nexus
    ‘

    • This reply was modified 5 years, 10 months ago by Jean-Baptiste.

    Ok. Just one more test – could you please remove everything and see if that fixes the issue?

    Thread Starter Jean-Baptiste

    (@jbc66)

    Thank you very much, I also deleted all the entries with / and now it works.

    Thanks for testing and reporting. This will be fixed in one of the upcoming releases, you’ll be able to use / in the exclusion lists

    Best regards,
    Anton

Viewing 7 replies - 1 through 7 (of 7 total)
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