Popup error message

Hi!

We just got a strange popup from internet explorer when accessing a web dynpro application:

Internet Explorer cannot open the Internet site

http://.....

Operation aborted.

We do not have this error on our server, only on the tester server. I ensured that the DevelopmentMode in the default property file was set to true.

We do not see any exception in the main log file.

Does anybody have an idea on this?

Best regards,

Barthelemy