Repeated navigations with location.hash etc should throw

[zcorpan]

If you call pushState too often it throws. Blink doesn't seem to throw but could, and Gecko already does that. Gecko also does this for location.{href, hash, ...}, but that's not specced as far as I can tell, but probably should be for the same reason.

Originally posted by @farre in #11409 (comment)

[zcorpan]

Demo for pushState: https://software.hixie.ch/utilities/js/live-dom-viewer/?saved=13881
Demo for location.hash: https://software.hixie.ch/utilities/js/live-dom-viewer/saved/13897

The spec for pushState already says to optionally throw SecurityError, which WebKit and Gecko implement but not Chromium. For location.hash Gecko throws but not WebKit or Chromium.

[domenic]

This is very related to #11169 which we closed out recently. I guess tracking location.hash's interop problem separately is reasonable?