Arpit Agrawal

@MartijnDwars One more thing I would like to highlight here, for chrome version below 49, subscription object only contains endPint and not the encryption keys. But this library always tries...

@MartijnDwars Cool, I would take up this PR.

@zeitlinger I also checked out the tracer codebase and I also had similar thoughts on `ls.verbosity`. I was also trying to understand rationale behind this, but couldn't got any idea....