02.09.2014, 10:55, "Anne van Kesteren" <ann...@annevk.nl>: > On Tue, Sep 2, 2014 at 2:54 AM, Robert Hanson <hans...@stolaf.edu> wrote: >> I respectively request that the wording of the warning [...] >> Warning: Developers must not pass false for the async argument when the >> JavaScript global environment is a document environment as it has >> detrimental effects to the end user's experience. User agents are strongly >> encouraged to warn about such usage in developer tools and may experiment >> with throwing a "InvalidAccessError" exception when it occurs so the feature >> can eventually be removed from the platform. >> >> [change] to >> >> Note: Developers should not pass false for the async argument when the >> JavaScript global environment is a document environment as it has >> detrimental effects to the end user's experience. Developers are advised >> that passing false for the async argument may eventually be removed from the >> platform. > > Sorry. As with showModalDialog() we would really like to make this > feature disappear. I realize this makes some forms of code generation > harder, but hopefully you can find a way around that in time.
Perhaps we should set some sense of expectation about *when* it won't work. Different parts of the Web move on different timelines. It may be simple to remove it from modern browsers, but this will simply motivate organisations who depend on a system that uses synch XHR to stop updating until they can find a way around. Understanding a bit better what happens in user-land would be very helpful, because giving people really good reasons to opt out of auto-upgrade and stick with the past is a bad idea... > Synchronous networking on the UI thread is a no-go. It's certainly an anti-pattern, given the thread constraints we have. But so is pushing big chunks of the real world to use old systems - because if they stop upgrading for one important problem, we revive the IE6 problem. While I doubt we'll get a genuine flag day, it should be feasible to get a sense of who suffers from the change, and when we can "break the web" without causing too much serious fallout. (My 2 kopecks) chaals
