SyntaxError when not specifying a charset

[fxedel]

Description

If you don't specify a charset (either by adding a meta tag or by setting the Content-Type response header), the element won't work.

Expected outcome

The iron-component-page element loads and you can see api reference and demo.

Actual outcome

The element doesn't load and shows unformatted text instead. There is an error message:

SyntaxError: invalid range in character class
TypeError: this.$.analyzer.analyze is not a function

Browsers Affected

• [ ] Chromium 50 => not affected
• [x] Firefox 47