Underline masks don't respect `user-select` CSS

[Kyle Murray]

This is a super tiny behavior, but if you have CSS like:

a:hover {
    -webkit-user-select: none;
}

... and then you hover over an underlined link with some text selected, there's this weird artifacting:

[Adam Schwartz]

Hey @krilnon this is a great catch. We treat these cases as yet another grouping within renderStyles and issue specific styles for ::selection (or abort) whenever a SmartUnderline location or its children do not allow selection. Unfortunately though in the default case (SmartUnderline.init({ location: '' })) this would require running getComputedStyle on every element of the page, which I think is probably too expensive for the gains we would get here. Thanks again for reporting but I’m going to close this as wont fix.

[Kyle Murray]

No worries; thanks for taking a look!