In https://github.com/feross/simple-peer/commit/e9ffcfab0e2fbd3f8179c50a0f49fac2adc3aa6f#commitcomment-20490182, @diasdavid pointed out that we're calling the two-parameter callback version of getStats() for wrtc, when it's expecting the one-parameter callback version, like Chrome.
Closing in favor of: https://github.com/feross/simple-peer/issues/122
6.2.0
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6.2.0