Firefox Crashing

[Alex Miłowski]

When I try my Web Component code with platform.js, Firefox just crashes.  I've identified two problem areas but, unfortunately, I can't reduce them to simple test cases.

1. A near-empty template:

The first problem is a template that only has a style.  When I use this template to construct a shadow DOM and then append an 'img' element, Firefox crashes.  If I add an empty 'div' element to the template, Firefox does not crash.

See line 41 of https://github.com/alexmilowski/db-component/blob/master/db-component.xhtml

I tried isolating this issue but when I only had a single custom element with the same setup, it worked just fine in Firefox. So, there must be some combined effect that I'm missing.

2. The main element 'db-article' has a template to add a header.  When the template is cloned then appended to the Shadow DOM root, Firefox crashes.  Since the root custom element has many children elements that are also custom elements, I suspect this has something to do with the "content" element in the template.  Of course, that is a complete guess.

Firefox crashes on line 159 of https://github.com/alexmilowski/db-component/blob/master/db-component.js

This issue is also hard to isolate as it is the whole document.  I'll try to make a simpler example of the crash later today.

The Web Component is a simple example of transliterating a XML document (a DocBook article) and it works quite well in Chrome.  If I remove the offending problems, it works reasonably well in Firefox.  Safari doesn't work at all due to the other issue I posted about.

--Alex Miłowski