Warning: Cannot modify header information – headers already sent

  • Resolved bartosz.petrynski

    (@bartoszpetrynski)


    8 years, 2 months ago

    When I initialise payment via Transferuj.pl I got warning message:

    Warning: Cannot modify header information – headers already sent by (output started at /wp-content/plugins/woocommerce-transferujpl-payment-gateway/tpayWoocommerceGateway.php:563) in /wp-includes/pluggable.php on line 1216

    Seems to be a problem with file saving (should be UTF-8 with BOM).

    Plugin version 2.5.8.

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