fix(react-router-dom): fix submitter serialization (alt approach) #9866
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🔈 NOTE: I have two proposed fixes; this is the alternate one, the primary proposal is #9865. This PR is the RR port of remix-run/remix#4475. 🔈
Bring
<Form>
submissions in line with the spec with respect to how and where form submitters are serialized within the data set. We accomplish this by constructing the form data set ourselves according to the spec.Problems fixed:
Notes: required a couple more jsdom polyfills in order to test it, but we should be able to upgrade and remove those soon 🤞
References: remix-run/remix#4342
Spec: https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#constructing-form-data-set