Fix response in json for IE

[piton4eg]

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[piton4eg]

I signed it!

[googlebot]

CLAs look good, thanks!

[garlicnation]

Looks good! Thanks for your contribution! Can you add a test for this case and rebase+squash against master?

[piton4eg]

@garlicnation Hi, I'm sorry, I tried to write test for it, but I didn't succeed.
Also I updated bower.json and some of test were passed