Clipboard.write() - only supports writing one ClipboardItem on Chrome/FF

[hamishwillee]

Chrome and FF only support writing one ClipboardItem - tested using (async (i = (t) => new ClipboardItem({ "text/plain": t })) => navigator.clipboard.write([i("a"), i("b")]).then(() => "resolved", (e) => ${e.name}: ${e.message}))().
Safari allows writing as many as you like.

The spec says that you may write more than one item if the OS supports it but that if not only the first item may be writen.

But what happens on Chrome/FF is a NotAllowedError exception - the spec says that additional items should be ignored.

(async (i = (t) => new ClipboardItem({ "text/plain": t })) => navigator.clipboard.write([i("a"), i("b")]).then(() => "resolved", (e) => `${e.name}: ${e.message}`))()

Promise { <state>: "fulfilled", <value>: "NotAllowedError: Clipboard write is only supported with one ClipboardItem at the moment" }

I added this as a note, but wondering if it should be a subfeature or this is OK? (or something else)

Related docs work can be tracked in mdn/content#45430

[github-actions]

Tip: Review these changes grouped by change (recommended for most PRs), or grouped by feature (for large PRs).

[caugner]

Is there a bug we could reference?

Could we mention what happens when writing more than one (NotAllowedError)?