Compatibility with Ruby on Rails Apps?

[ghost]

I have a RoR application and I have implemented the feedback tool on that app. There is an issue with highlighting elements(firefox, chrome) some elements get highlighted but some do not and the feedback highlight container also appears translucent instead of showing highlighted colors. What would be the probable cause for this, I am assuming it is the rendering of .haml and .scas files that is producing some fishy .css properties not supported by html2canvas.js. I have also tried configuring z-index level for both host and feedback tool canvasses but no luck.