On Tue, Oct 7, 2014 at 2:27 PM, Adam Ahmed <aahmed at atlassian.com> wrote:
> I got curious after reading the Array.prototype.contains thread.
>
> I understand it means 'old things on the Web will break', but is there some
> cutoff? Based on number sites or number of affected users?
>
> Couldn't find a definition searching esdiscuss.org - apologies if it's been
> discussed.

No official cut-off.  The strict definition is "whatever amount of
breakage browsers are willing to tolerate", which varies from
browser-to-browser and somewhat randomly anyway.  In Blink, for
example, we tend to be okay with breaking things around a .001%
cutoff.

~TJ

No official cut-off.  The strict definition is "whatever amount of
breakage browsers are willing to tolerate", which varies from
browser-to-browser and somewhat randomly anyway.  In Blink, for
example, we tend to be okay with breaking things around a .001%
cutoff.