Add HTMLFormElement.requestSubmit Polyfill

[andrew-pyle]

Feature

What

I'd like to request the HTMLFormElement.requestSubmit polyfill (https://www.npmjs.com/package/form-request-submit-polyfill) be added to polyfill.io

Details

HTMLFormElement.requestSubmit() allows for triggering the SubmitEvent when submitting a form via Javascript. Currently Chrome, Firefox, and Edge support it but Safari <16 does not: https://caniuse.com/?search=requestsubmit

[JakeChampion]

Howdy, I've not looked at the polyfill myself but thought I'd mention we have contribution guides for adding a new polyfill if you wanted to give it a go 🤞 https://github.com/Financial-Times/polyfill-library/blob/master/.github/contributing.md#adding-a-new-polyfill

[mhassan1]

@andrew-pyle I can take a stab at it, unless you wanted to.

[andrew-pyle]

@mhassan1 @JakeChampion I actually started working on this about an hour ago. I think I can finish it today.