Closed kevinhowbrook closed 5 years ago
Fixed in Wagtail by https://github.com/wagtail/wagtail/pull/4942/commits/0cb560980402342e52cdb8d9457e6d63a39e988b. I will backport this change to wagtail-react-streamfield soon.
Thanks @BertrandBordage
Fixed by c040db0395a0356b51d2303ddb8b376f1ac14877.
errorObject of type builtin_function_or_method is not JSON serializable
is thrown when defining a block with a default date value e.g: