Re: [dom-tests] Update dom/lists/DOMTokenList-iteration.html so it no longer expects duplicates (#4658)

OK, so this is a pretty similar to the first mishap mentioned in https://blog.whatwg.org/improving-interoperability, so let's try to not do this kind of thing as much going forward.

@cdumez, perhaps there are other tests for this, but can you summarize where uniquifying happens in the various engines? It looks like Blink stores the tokens separately from the underlying values, so presumably it would be fairly simple for Blink to follow WebKit here. But, if the behavior of the 3 other engines kind of makes sense, then *maybe* the simplest path is to change the spec again, and be very sorry about it. (Sorry if we've already discussed this elsewhere and I've forgotten.)

View on GitHub: https://github.com/w3c/web-platform-tests/pull/4658#issuecomment-276290893

Received on Tuesday, 31 January 2017 07:10:26 UTC