Other - Disable Macros on Webapplication

Hi all,

A user is using Macros to screen scrape a web application screen. I need to disable the macro on my web application, but it should work as usual in other web applications. Tried to use JQuery to block the macro but it is blocking it on the browser level there by disabling the macro on other we applications as well.
Appreciate your help on this issue and Thanks in advance for your suggestions.