ERR_EMPTY_RESPONSE

This isn't a problem with Phabricator.

Or, at least, not one we've ever heard of nor are likely to be able to replicate. Google seems to suggest this is a local computer / network issue.

https://www.quora.com/How-do-you-fix-the-no-data-received-error-on-Chrome

Thanks, that's what I'm thinking, too, but I wanted to check all of the options. Thank you.