Possible bug in tooltip caption binding when content has escaped apostrophe

[simon-20]

Hi,

I've found a possible bug in the tooltip binding. If the title has an escaped apostrophe in its content, then calls to ko.applyBindings fail.

That is, something like the following fails:

<span class="fa fa-question-circle" data-bind="tooltip: { title: 'Hey, I&#x27;m a tooltip help string!', placement: 'top' }" aria-hidden="true"></span>

Swapping the quotes styles around fixes the issue, so this works:

<span class="fa fa-question-circle" data-bind='tooltip: { title: "Hey, I&#x27;m a tooltip help string!", placement: "top" }' aria-hidden="true"></span>

But it seems like the first version should work fine. There is a demo here:

http://simonkittle.com/dev/ko-bootstrap-binding-error/

It makes no difference whether the apostrophe is escaped with ', ' or '.

[simon-20]

I think perhaps this isn't a bug after all. According to the HTML 5 spec, any string values are permitted as values for HTML attributes, so the apostrophe should perhaps be escaped in the Javascript manner, \', rather than as an HTML entity (and ko-bs handles the former as expected).

(I came across this issue because ASP.NET's Razor uses HTML encoding, but I was able to work around that).