Problem with form action attribute-allowed-values (and tests)

The attribute-allowed-values rule rejects valid values for <form action="..."> attribute. I think the fix should be simple (see below) but there is an added problem of current tests passing that shouldn't be passing.

Reduced test-case

To reproduce, edit file html-validate/test-files/elements/form-valid.html and duplicate line 18 so you end up with:

...
<!-- should allow action attribute -->
<form action="/target"></form>
<form action="/target"></form>

...

Then running npm test -- -i elements/html5.spec.ts will fail (on the original line 18).

Configuration

A fresh git clone / npm test of html-validate.

Expected result

Test to pass because "/target" is a valid value.

Actual result

Test fails with error Attribute "action" has invalid value "/target".

Suggested fix (to primary issue)

I didn't dig into why the test originally passes when it shouldn't, but for the actual problem with the rule I played around a little. From looking (quickly) at Validator.validateAttributeValue and the rules, I'm guessing the problem is that the rule definition (in elements/html5.js line 534) is currently specifying the regular expression as a string instead of a RegExp. Changing the regular expression value from "\\s*\\S+\\s*" to /\s*\S+\s*/ seems to fix the issue, but with side-effects of making tests from html-validate/test-files/elements/form-invalid.html fail (that should pass).

Version

• html-validate: 7.3.1