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@jacobrossi
Last active Apr 1, 2018
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Windows 10 Technical Preview IE UA String
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.71 Safari/537.36 Edge/12.0
@silverwind
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silverwind commented Jan 22, 2015

Can we please deprecate UA strings already?

Here's wishing for something like navigator.supports.{feature}.

@dmethvin
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dmethvin commented Jan 22, 2015

@jrodl3r
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jrodl3r commented Jan 22, 2015

@silverwind after they all agree to do that in 10 years, IE will insist on using different feature-names.

@lyzadanger
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lyzadanger commented Jan 22, 2015

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!

@jacobrossi
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jacobrossi commented Jan 24, 2015

Honestly, we wish the UA string didn't have to be a lie (though it is in every browser). If the tokens were stickers, then this looks like the back of my laptop! But this is a necessary change. The reality is that our new engine, EdgeHTML, is further diverged from Trident than even Blink is from WebKit. So its necessary to break those ties. Further, today's web just doesn't work unless you have these other tokens. The number of broken sites is in the thousands. It's also worth noting that we're not just slapping these in there with nothing else, these Chrome/Safari tokens come along with a commitment to quadruple down on interoperability with these browsers. To date, we've made over 3000 interop fixes and are adding over 40 new standards, which makes these tokens more of a white lie. :) Rest assured we understand sniffing is occasionally necessary. We will absolutely maintain a way to confidently identify the new engine (look for "Edge").

@z-eh
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z-eh commented Jan 24, 2015

It's just some compatibility issue. We have Mozilla keyword in IE UA string from IE9, now we also have Safari and AppleWebKit for the same. :)

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