[Webkit-unassigned] [Bug 83993] Unsupported commands in execCommand/queryCommand* should throw except queryCommandSupported

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=83993





--- Comment #14 from Alexey Proskuryakov <ap at webkit.org>  2012-04-16 14:48:37 PST ---
> is of no use to Web developers

I should qualify this statement. It's of no use to developers writing interoperable code. It is of use to developers who are tasked with figuring out why a page doesn't work in a particular browser.

In that case, it certainly helps to see an assertion fire in your developer tools. But there are other ways to debug such issues, so I don't think that this scenario should determine how APIs work.

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