Actions expect form-encoded data (received application/json) error in SvelteKit form handler

[danawoodman]

With v0.6.1 itty-fetcher does not appear to work with form actions. POSTing setting value as JSON for some inexplicable reason.

const data = new FormData();
data.set("file", new File(["hi"], "foo.txt"));
fetcher()
	.post("/preview?/upload", data)
	.then(console.log)
	.catch(console.error);

Fails with Actions expect form-encoded data (received application/json)

[danawoodman]

Believe this is because the content-type header is set to application/json

[kwhitley]

Wait, did you try 0.7.0 after my changes?

[danawoodman]

Why would the Blob change affect the form content type?