invalid error: [StreamSaver] You didn't send a messageChannel

[tra4less]

Streamsaver focuses messages generated by other libraries, causing invalid error

StreamSaver.js/mitm.html

Lines 61 to 71 in 5b372f7

	let { data, ports, origin } = event
	// It's important to have a messageChannel, don't want to interfere
	// with other simultaneous downloads
	if (!ports || !ports.length) {
	throw new TypeError("[StreamSaver] You didn't send a messageChannel")
	}
	if (typeof data !== 'object') {
	throw new TypeError("[StreamSaver] You didn't send a object")
	}

[JYbill]

#234
I have solved the problem in this way, maybe you can try it.

[caenderl]

The download works and if this error would appear only once on console, it would be okay. But it prints the error like crazy and my only workaround at the moment is a page reload after the download which is definitely not a solution.
Happy for any possibly better workaround or a solution.