[webrtc-stats] Stats table generation has failed (#606)

alvestrand has just created a new issue for https://github.com/w3c/webrtc-stats:

== Stats table generation has failed ==
At the moment, there's a red dot on https://w3c.github.io/webrtc-stats/ saying "Function generateStatsHierarchy threw an error during postProcess. See developer console. (Plugin: "core/post-process")."

this is the magic made by @dontcallmedom - can you fix it?


Please view or discuss this issue at https://github.com/w3c/webrtc-stats/issues/606 using your GitHub account


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