reverse proxy user-agent spoof

Hello -

I have a need to set up a reverse proxy that will rewrite the user-agent so that all IE versions will be detected by the target website as MSIE 8.0.

The reason: The target application should work fine in all semi-modern IE browsers, but there's a hard-coded browser version check that prevents access to all IE above version 8. The code of the application itself can't be changed, so I want to spoof the user agent it detects.

Can this be done with nginx?

Thanks,

Jason