fromFormElement

[toastal]

Description of the change

https://xhr.spec.whatwg.org/#dom-formdata

It's really annoying not having a way to get FormData for Affjax despite having an HTMLFormElement.

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Checklist:

• Added the change to the changelog's "Unreleased" section with a reference to this PR (e.g. "- Made a change (#0000)")
• Linked any existing issues or proposals that this pull request should close
• Updated or added relevant documentation
• Added a test for the contribution (if applicable)

[garyb]

It kinda sucks that we need to add a dependency on -html for this. 😞 I guess there isn't really another option though if we're being consistent with where things live.

[toastal]

@garyb , I mean I agree, but it already depends on web-dom and it wouldn't have a circular dependency issue. Not sure if this is best function name either.

[garyb]

Yeah, it makes sense, I was just lamenting the less than ideal situation! I meant to approve this 🙂.