PUBLIC MARKS with tags QA & interoperability

Web standards are complex software artifacts and like all software, they contain bugs. Sometimes the best way to find and fix compatibility bugs is to implement and deploy the standard on widely used browsers.

The point is that JavaScript developers shouldn’t have to detect and workaround such issues. JavaScript should work the same across all implementations. We believe this is the first step in making JavaScript better. To make it possible to achieve such implementation conformance, the first step is knowing where the divergences are. We in the JScript team are looking into where various browser based implementations diverge, where our engine is incorrect in its interpretation of the specification, what if any de facto compatibility conventions have been reached, and the value of codifying such conventions into the standard. We’ve published the first draft of JScript Deviations from ES3 as a starting point.

I’ve already stopped using ems as a relative unit for layout and sizing and have gone back to pixels because of the zoom for IE7 that works like Opera.