This is another case which I know the cause and the solution for a problem. But I don't understand why it would cause a problem.
Environment:
- IE10, Win7, Flash Player 11.8 debugger
- Google Chrome 28.0 with Flash Player 11.8
Symptom:
Flex application stopped working in IE. Always getting this error message: "RSL Error 1 of 2". RSL is short for Runtime Shared Library. Using ServiceCapture, I do see the main SWF loaded, and the first RSL loaded, but no the rest.
The same Flex application works perfectly in Google Chrome.
Cause:
In the the IE Security setting, "Enable Protected Mode" is unchecked.
Solution:
Go to IE > Tools > Internet Options > Security, make sure "Enable Protected Mode" is checked. Then restart IE. Voila, it all works again. In retrospect, I might turned it off when I was trying to set up Selenium test framework.
Question:
It's still beyond me why "Protected Mode" seems to make IE 10 more compatible. Just a few days back I had another problem with Office Web application due to the exact same cause. An extra IE windows will always popup when I open an Office 2013 application in Excel. The problem is gone after I enabled protected mode.
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Flex: a RIA web application development framework based on Adobe Flash technology
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