[selectors] querySelector() with quote and/or square bracket missing on right #1933

(From Chrome bug)

The call

// double quote and square bracket on the right side was missing.
document.querySelector('meta[name="description');

succeeds on Chrome/Edge/Firefox and fails on Safari.

Does the spec specify which behavior is correct?

We should have a web platform test. Apart from a DOM test, querySelector[All] doesn't appear to have tests.