Parsing the IE invalid standard 'filter'

[splitice]

Most stylesheets I see in production have atleast one DXImageFilter in them, usually for lightboxes and the likes. While they are invalid format (non W3c) I dont think its great to have the parser fail when parsing them, they should be ignored? But hopefully left in the final output so yeah.

An example of what i am talking about is:
filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src="overlay.png",sizingMethod="scale")}

Any chance you could improve your parser to handle Microsofts proprietary extension?

[sabberworm]

You are right. This is definitely a feature to be considered. The problem is that it’s actually in the CSS specification how to parse invalid CSS while this particular parser only guarantees to parse valid CSS.

[NickStallman]

jQuery UI uses a number of filter:alpha(opacity=0.7) style rules so that is a lower hanging fruit to target.

[sabberworm]

jQuery UI only produces filter:alpha(opacity=0.7) styles (as inline styles), it does not require the CSS file to contain those styles.

[NickStallman]

Themes I've made with the ThemeRoller use the filters. E.g. .ui-helper-zfix, .ui-widget-overlay and a few others.

[sabberworm]

I think support for filter: alpha(opacity=xyz); is good enough, we don’t need to support filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src="overlay.png",sizingMethod="scale")}.