bug#26634: 26.0.50; The network security manager doesn't understand IDNA domains

[Lars Ingebrigtsen]

If you type `M-x eww RET https://аррӏе.com RET', the NSM will then say:

"certificate host doesn't match hostname"

That's an IDNA domain that expands to https://www.xn--80ak6aa92e.com/,
which does have a valid certificate, so this is a bug.

If instead say `M-x eww RET https://www.xn--80ak6aa92e.com/ RET' you get
no warnings.


In GNU Emacs 26.0.50 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.14.5)
 of 2017-04-13 built on stories
Repository revision: 4e77ff0d45b88cade7836c01344cd8d892adfde8
Windowing system distributor 'The X.Org Foundation', version 11.0.11604000
System Description:     Debian GNU/Linux 8.7 (jessie)

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   bloggy blog: http://lars.ingebrigtsen.no