1623090 - Wrong User-Agent header in Responsive Design Mode when mobile device is set

Status: RESOLVED DUPLICATE of bug 1595017

(DevTools :: Responsive Design Mode, defect)

Description

[kasper.moskwiak]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:74.0) Gecko/20100101 Firefox/74.0

Steps to reproduce:

1. Open website (e.g. www.mozilla.org ) and turn on DevTools
2. Turn on Responsive Design Mode and choose mobile device (e.g. iPhone X)
3. Reload Page

Actual results:

Request header "User Agent" should reflect mobile device. Should be to:
"Mozilla/5.0 (iPhone; CPU iPhone OS 12_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/12.0 Mobile/15A372 Safari/604.1"

Expected results:

Request header "User Agent" is equal: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:74.0) Gecko/20100101 Firefox/74.0

Comment 1

[kasper.moskwiak]

I have put actual / expected results in wrong order. Here are fixed:

Actual results:
Request header "User Agent" is equal: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:74.0) Gecko/20100101 Firefox/74.0

Expected results:
Request header "User Agent" should reflect mobile device. Should be to:
"Mozilla/5.0 (iPhone; CPU iPhone OS 12_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/12.0 Mobile/15A372 Safari/604.1"

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.

Comment 3

[Micah [:mtigley] (she/her)]

Looks to be a duplicate of Bug 1595017. Feel free to re-open if that's not the case.