Tags: useragent



Monday, June 18th, 2018

User agent as a runtime | Blog | Decade City

Ultimately you can’t control when and how things go wrong but you do have some control over what happens. This is why progressive enhancement exists.

Tuesday, January 27th, 2015

Windows 10 Technical Preview IE UA String

I love Lyza’s comment on the par-for-the-course user-agent string of Microsoft’s brand new Spartan browser:

There must be an entire field emerging: UA archaeologist and lore historian. It’s starting to read like the “begats” in the bible. All browsers much connect their lineage to Konqueror or face a lack-of-legitimacy crisis!

Monday, August 4th, 2014

The Mobile Web should just work for everyone - IEBlog

One more reason why you should never sniff user-agent strings: Internet Explorer is going to lie some more. Can’t really blame them though—if developers didn’t insist on making spurious conclusions based on information in the user-agent string, then browsers wouldn’t have to lie.

Oh, and Internet Explorer is going to parse -webkit prefixed styles. Again, if developers hadn’t abused vendor prefixes, we wouldn’t be in this mess.

Monday, December 9th, 2013

Type Rendering Mix

I got excited when Tim Brown announced this at An Event Apart today: a small JavaScript tool for detecting what kind of rasterising and anti-aliasing a browser is using, and adding the appropriate classes to the root element (in much the same way that Web Font Loader does).

Alas, it turns out that it’s reliant on user-agent string sniffing. I guess that’s to be expected: this isn’t something that can be detected directly. Still, it feels a little fragile: whenever you use any user-agent sniffing tool you are entering an arms race that requires you to keep your code constantly updated.

Monday, February 25th, 2013

gaia/build/ua-override-prefs.js at master · mozilla-b2g/gaia · GitHub

And this is why user-agent sniffing not a future-friendly technique. A new mobile browser comes along, and it has to spoof a fake UA string to all of these sites.

It’s a Red Queen arms race.