[Webkit-unassigned] [Bug 50187] New: implement onload events for <link rel=prefetch>

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=50187

           Summary: implement onload events for <link rel=prefetch>
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: gavinp at chromium.org
                CC: abarth at webkit.org


Right now link rel=prefetch doesn't dispatch onload events.  However, it probably would be really good if it did.  Tests would be less flaky, for one.

I emailed hixie to see what he thought, and here's the pasted correspondence:

Ian Hickson to Gavin, Adam
show details 5 Nov
- Hide quoted text -
On Fri, 5 Nov 2010, Gavin Peters (�~S~K�~V~G彼德�~V�) wrote:
>
> WebKit currently supports link rel=prefetch, but doesn't have onload or
> onerror events for this.  There was some discussion when this feature
> was first added about if this was appropriate:
> https://bugs.webkit.org/show_bug.cgi?id=3652
>
> We've since landed it, and I've had web developers ask me if we can
> generate these events: especially since WebKit supports mutating the DOM
> to include link rel=prefetch (mozilla doesn't), developers who are
> adding these programatically want a way to know how many are in flight.
> This mechanism would do it for them.
>
> What do you think?  Is this within spec and reasonable, or do you have
> any other comments about it?

Sounds good to me. Technically the HTML spec requires load and error
events to be fired on all <link> elements whenever they load anything:

  http://www.whatwg.org/specs/web-apps/current-work/complete.html#concept-link-obtain

...so it's definitely per-spec.

--
Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'

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