Unicode characters in Har break beacon service

[shadybones]

HarUploader.prototype.start()
includes:
this.request.setRequestHeader("Content-Length", jsonString.length);

which when jsonString includes unicode characters (by that, I mean bom-containing characters), the jsonString.length != jsonString.byteLength.

This makes the header incorrect and my beacon service can't parse the Har string.

Fix: I recommend just not setting the "Content-Length" header manually. Removing that line fixed the problem for me.

[janodvarko]

Thanks for the report!

Patch committed at:
12b810d

Honza