Not sure what's the issue here, according to the spec you should be able to get it on the first request: > Sites that wish to serve mobile-specific sites using

Not sure what's the issue here, according to the spec you should be able to get it on the first request: > Sites that wish to serve mobile-specific sites using UA-CH can do that using the Sec-CH-UA-Mobile headers that are sent by default on every request. What am I missing?