[whatwg] should we add beforeload/afterload events to the web platform?

Ian Hickson ian at hixie.ch
Fri Feb 3 19:53:34 PST 2012

On Fri, 3 Feb 2012, Boris Zbarsky wrote:
> On 2/3/12 3:38 PM, Ian Hickson wrote:
> > > I also believe that we have proposed this for standardization in the 
> > > past, though it seems to have fallen through the cracks a bit...
> > 
> > I couldn't find any mention of it in the WHATWG archives or Bugzilla, 
> > though I did find an e-mail from sicking saying he'd proposed it to 
> > the WHATWG list. :-(
> http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2010-August/027975.html 
> and then there were some followup mails with broken threading 
> bikeshedding the names looks like.

Ah yes, that thread is here currently:


Since the use cases were for new features (as opposed to addressing 
security vulnerabilities, which seem more important), I have been 
deferring it until I get through the bug reports.

So it didn't fall through the cracks, it's still in a bucket. :-)

(Since I've now done half of that thread's requests anyway, and since it's 
gotten implementations already now, I'll fasttrack it.)

> > As noted in the previous e-mail, it's not clear that the 
> > content-blocker use cases are valid. The use case that is compelling 
> > for beforescriptexecute is regarding sites who are trying to address 
> > mixed content vulnerabilities progressively and need to closer control 
> > over external script execution.
> That's the use case I was talking about, but they'd want at least 
> control over stylesheets too, I'd think.

Surely for the style sheets there's far less of a difficulty in getting 
things right? I don't really understand what vulnerability would be 
relevant here such that you'd need per-stylesheet control over what was 
being imported.

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

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