Re: [editing-explainer] Should execCommand be spec'd to do nothing in cE=typing? (#33)

I was wondering if UAs will have to introduce a whole new bunch of code to be able to handle execCommand on cE=typing properly. I mean, there may be differences in things like selection that will force UAs to handle things differently. Some commands, like "delete", are even supposed to not be handled by UAs in cE=typing.

The above, other than eventually slowing down the adoption of cE=typing, will also push forward one of the biggest problems with cE=true, where commands have no specs.

 * Option 1: explicitly declare that execCommand is to be supported, in the new cE=typing specs.
 * Option 2: explicitly declare that execCommand must have no behavior, in the new cE=typing specs.
 * Option 3: completely ignore execCommand and see this as an independent API out of the contenteditable specs and scope.

I tend to like "Option 3".

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