Bug #105703
Updated by Daniel Siepmann 4 months ago
Steps to reproduce:
# Clean TYPO3 installation
# Apache
# Add a LOT of cache tags, e.g. tt_address list plugin with lots of records.
# Break the limit of apaches header sizes
Drupal had the same issue. More info is available at: https://github.com/docksal/docksal/issues/1110
They solved it by adding multiple headers splitting the list of tags: https://www.drupal.org/files/issues/2019-05-30/finish-response-subscriber--need-warning-error-when-headers-exceed-16k-2844620-20.patch
Our internal corresponding issue: "Aufgabe #11275 TYPO3 Upgrade 13 LTS" in order to more easily find a project where we can verify any fixes.