[html5] Detect support for tel: uri scheme or better markup for phone numbers
ian at hixie.ch
Thu Jan 10 12:33:42 PST 2013
On Thu, 10 Jan 2013, Markus Ernst wrote:
> Is there a recommended and reliable way to detect whether tel: links are
In theory, any Web page can register as a handler for tel:. One could
imagine e.g. Google Voice handling that protocol on a desktop browser.
We could provide an API that exposes which schemes are available, but
really a better solution would probably be for browsers to detect that the
link doesn't do anything (because they and their OS don't support the
scheme) and then not making :link/:visited match it.
> Personnally I think that tel: and mailto: uri schemes are actually not a
> satisfying way to mark up phone numbers resp. e-mail addresses.
> Something like <span role="phonenumber" target="+0123456789"> would be
> better, as UAs were free to apply all kind of functionalities they are
> configured to, and non-supporting browsers would just ignore them
> instead of displaying ugly error messages.
(or doing nothing)
Yeah, it is kind of weird how non-fetchable-resources are marked up in
this way. Not sure what to do instead though. There's a lot of momentum
behind the current mechanism.
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
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