Not work with FormData

[MeloJR]

When you pass FormData objects as the data parameter the library sends the request as application/json.

The problem is here:

		if (data && typeof data === 'object') {
			data = JSON.stringify(data);
			customHeaders['Content-Type'] = 'application/json';
		}

as typeof new FormData() === 'object'.

[developit]

Good catch. Happy to accept a PR, this will likely require inspecting the constructor.

[crissto]

Hi!
would the solution to this be, check if data is FormData and set a different Content-Type? If it's that I can fix it and send a PR

[fabricionaweb]

@crissto I guess we can just check !(data instanceof FormData)
But not sure if that has side-effects... hope @developit knows more than me about it :D

[developit]

@fabricionaweb yup, that's likely going to be the smallest check.

Another option would be checking if (typeof data.append=='function'){}, but the size win likely isn't worth the false positive chance.

[developit]

Fix published in version 0.3.0.