Yeah, I need to figure out where in the code that default is set. The requests are probably SPDY over SSL which is something that the Chrome agent can’t decode yet. They aren’t errors, I just don’t have visibility into the actual requests (it’s something we are working on).
SPDY has been in production for well over a year. Most HTTPS requests to Google from Chrome uses SPDY. Chrome has had support for it for quite a while as well. What “I” don’t have yet is code in WebPagetest to decode SPDY streams and deconstruct the individual requests.
I noticed this for my Website and spent hours going through the code for my site to check if there was an errant JS library making a weird SSL connection to Google. Then I thought of checking Facebook (BTW, FB is not my site, I am not Zuck from two locations:
Notice that requests 14 and 16 in their waterfall view are SSL connections to IP addresses 72.14.204.104 and 72.14.204.120 respectively. These IP addresses are owned by Google, and the SSL connections timeout.
It’s possible that only some of the chrome agents have the SSL decoding enabled - I’ll take a look (with it disabled the ssl requests are completely invisible).