Is JavaScript-based playback a technical dead end for testing webapps?

Hello All,

I have read a blog from eVaild.
http://e-valid.blogspot.com/2008/08/...r-part-ii.html


They think, that because of security considerations web testing using
JavaScript-based playback is a technical dead end. But I think, some
limitations of JavaScript (e.g. cross-domain data accessing) can be
solved by elevating the privileges of browsers. Actually MSIE and
Firefox provide such an option. Some other limitations can be solved
using some gray-box-testing tricks (e.g. simulating HTTP-requests).

I also think, that JavaScript-based playback is a correct direction for
web testing. Because it is browser independent. We can use one test
framework and write only one test suite for all browser environments.

Browser-based test toolkit like eValid are truly very powerful. But they
can finish test jobs very quick only for certain browser rendering
engines. We still have to perform tests manually in other browsers.
(Except you have no test plan for those browsers.)

What are your opinions?


--
Xu, Qian (stanleyxu)
http://stanleyxu2005.blogspot.com