Comment 4 for bug 1240485

As evidenced by daker, when we’re getting the desktop version, the first request (to https://maps.google.com/) is being sent with the default UA string, not the overridden one. This can be observed if running the browser app with the --inspector command-line switch, and then using the "network" view of the web inspector to spy on outgoing HTTP requests:

Request URL:https://maps.google.com/
Request Method:GET
Status Code:200 OK200 OK
Request Headersview source
Accept:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
User-Agent:Mozilla/5.0 (Ubuntu; Mobile) WebKit/537.21
Response Headersview source
Alternate-Protocol:443:quic
Cache-Control:private, max-age=0
Content-Type:text/html; charset=UTF-8
Date:Wed, 16 Oct 2013 14:34:54 GMT
Expires:-1
Server:GFE/2.0
Transfer-Encoding:chunked
X-Content-Type-Options:nosniff