parent.setEmailRange is not a function

Hi,

I am using MSD365 version 9.1(online). I have added an HTML Web Resource to my CRM solution. After saving the Web Resource the following code i.e. onfocusout="parent.setEmailRange" gets attached to the body tag of my html code which eventually throws an error "parent.setEmailRange is not a function".

I have tried to remove this onfocusout eventhandler code but it gets reinserted.

Any help would be appreciated !!

Thanks,

Shreya K