Polyfill remote-dom FormData using the native Worker implementation#621
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developit wants to merge 3 commits into
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Polyfill remote-dom FormData using the native Worker implementation#621developit wants to merge 3 commits into
developit wants to merge 3 commits into
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Capture the environment native constructor and populate it from the common subset of successful Remote DOM controls. This keeps native storage, file handling, iteration, and multipart Request interoperability intact.
Avoid inferring checkable behavior from input type names so Remote DOM custom elements participate correctly. Cover custom checked properties and document the property-based behavior.
Use explicit early continues so omitted controls do not trigger unrelated property reads. Keep each omission rule independent and let downstream minification combine conditions when useful.
frehner
reviewed
Jul 16, 2026
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| data.append(name, control.value ?? control.getAttribute('value') ?? ''); |
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checked elements submit "on" as a fallback if the value attribute isn't there
Otherwise, if the field element is an input element whose type attribute is in the Checkbox state or the Radio Button state:
If the field element has a value attribute specified, then let value be the value of that attribute; otherwise, let value be the string "on".
step 7.1 here https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#constructing-form-data-set
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Summary
Bridge remote-dom forms to the native
FormDataimplementation available in Web Workers, instead of reimplementing the API. This keeps the polyfill small while preserving native behavior for storage, iteration, file handling, and multipart request interoperability.What changed
FormDataconstructor and use it to build form data from remote-dom controls.FormDatafrom the common subset of successful controls supported by remote-dom.Notes
FormDatasemantics.