Width: unset not showing as unsupported by IE

[ZacharyRSmith]

I ran stylelint with width: unset as a CSS rule, but the linter did not warn me about this, even though it was warning me about other things not supported by IE.

CanIUse shows unset as being unsupported by IE.

[ismay]

If you're seeing other warnings then I suspect it's a doiuse issue (which we use to detect browser support). Try using only doiuse (without stylelint) and see if that yields the same results. If it does it's a doiuse issue and you can open an issue there. Otherwise let me know and we'll reopen and investigate further (a reduced testcase would be nice in that case).

[ZacharyRSmith]

For future reference:

My workaround:

I'm using stylelint to run doiuse, in addition to other linting. To warn about "initial" and "unset", I have the below rule in my .stylelintrc. The built-in rule 'declaration-property-value-blacklist' blacklists the property-value pair I give it. The pair I give it is:

property: "/^.*/" (match all regex)
value: ["initial", "unset"]

So, all properties with a value of "initial" or "unset" will throw a violation.

I set the violation severity to warning.

		"declaration-property-value-blacklist": [{
			"/^.*/": ["initial", "unset"]
		}, { "severity": "warning" }],

[ismay]

Thanks @ZacharyRSmith. Also, I'll quote your other comment for others encountering this issue:

From what I can tell looking at the [doiuse] source code, no unsupported values are being checked -- only unsupported properties.

So this has to do with doiuse, which is wrapped by this lib. See this issue: anandthakker/doiuse#56