Deprecated function: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in Drupal\Core\EventSubscriber\ActiveLinkResponseFilter->onResponse() (line 82 of core/lib/Drupal/Core/EventSubscriber/ActiveLinkResponseFilter.php).
Deprecated function: stripos(): Passing null to parameter #1 ($haystack) of type string is deprecated in Drupal\Core\EventSubscriber\RssResponseRelativeUrlFilter->onResponse() (line 24 of core/lib/Drupal/Core/EventSubscriber/RssResponseRelativeUrlFilter.php).

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