One oddity of forms: the result of a form POST is a page that has a location (the URL) but that cannot loaded via that location. As far as I know, the fact that the page is a POST and not a GET is not stored anywhere visible to the user or to JS. And refresh works oddly.

If method=QUERY were added, there would be a new variety of this weirdness.

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sheept 4 hours ago | parent [-]

At least browsers wouldn't have to warn users that they'd be resubmitting data if they reload the page after submitting a query form, since query requests are intended to be idempotent

	▲	amluto 4 hours ago \| parent [-]
		You still get the nastiness that the Sec-Fetch-* state gets mostly trashed when you hit refresh. And someone would need to figure out how CORS preflight interacts with refresh, which is not currently an issue with POST. (The current "simple request" behavior or whatever it's called is a real mess and is the cause of a lot of CSRF vulnerabilities.)