Normalize tag case for true XHTML

[sabberworm]

For compatibility with documents served as application/xhtml+xml, tagName checks need always be normalized.

[olivernn]

Do you have an example of the issue this is solving, or some steps to re-create your issue?

[sabberworm]

Steps to reproduce:

1. Create an XHTML file with a link.
2. Include jQuery.
3. Include davis.js and use Davis(jQuery.noop).start().
4. Serve said file with the Content-Type: application/xhtml+xml MIME Header.
5. Navigate the browser to the served location. Open the console.
6. Click on the link.

EXPECTED results:
The log should say: routeNotFound: GET ….

ACTUAL results:
No log entry… Davis did not detect the click.

[sabberworm]

I think you can also save the HTML file with a .xhtml or .xml extension and open the file in the browser locally to see the error (at least in Firefox).
The reason behind this is that the XML DOM (in contrast to the HTML/SGML DOM) does not do any case-folding on tag names (and attributes).

[olivernn]

Ok, I've managed to re-create this now. I'm going to call toUpperCase on the nodeName rather than change the origin checks object as well.

[olivernn]

I've just pushed a new release (0.6.1) which fixes this problem.

[sabberworm]

Thanks!