TYPO3 Exception 1581862822¶
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This error might be caused by inserting content into a Fluid template by
If the TypoScript object uses a insertData = 1
or the datawrap curly
braces might get parsed, see
https://docs.typo3.org/m/typo3/reference-typoscript/main/en-us/Functions/Stdwrap.html?highlight=insertdata.
So, the serialized value of the hidden form field
tx_form_formframework[__trustedProperties]
get’s parsed, too. The
following HMAC validation throws the exception, because the
__trustedProperties
is broken.