Recreate FormData after beforeSubmit mutates form#24946
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Pull request overview
This PR fixes a bug where form mutations made by the beforeSubmit callback were not reflected in the submitted data. The issue occurred because FormData and the serialized array were created before calling beforeSubmit, so any DOM changes made by the callback (such as adding hidden fields) were not captured.
Changes:
- Move
FormDatacreation to afterbeforeSubmitcallback execution - Re-serialize form array after
beforeSubmitto capture DOM mutations for GET requests
EngincanV
approved these changes
Feb 25, 2026
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