Fix serialization of replies when some of them are URIs #13957
Merged
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Fixes #13956
This happens because Active Model Serializer's
CollectionSerializer
(automatically used for arrays) does not allow mixing primitives (such as strings, like the URIs here) and raises:no_serializer
whenever one of the items is a primitive, making the whole thing fall back toto_json
.This PR introduces a
StringSerializer
to allow mixing strings with serializable objects. This messes a bit with the fact that AMS serializers are geared towards rendering actual JSON object, but that was already the case of the built-inActiveModel::Serializer::CollectionSerializer
.