PHP warning every time wp-cron runs
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The php error log for my site is frequently showing the following warning.
PHP Warning: Cannot modify header information - headers already sent in /public_html/wp-content/plugins/wp-cloudflare-page-cache/src/Utils/Helpers.php on line 21I examined server logs and determined that the warning is triggered every time wp-cron.php is run.
I believe this issue started with version 5.0.6 or 5.0.7. It is still happening with the current 5.0.9.
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