In MS Dynamics CRM 4.0 we have created an extra tab for the salesorder entity in which an IFRAME with a custom, remote PHP page is loaded. Is there any way to find out which CRM user opened the tab with the IFRAME from the PHP file?
You should use postMessage to send the user's information to the IFRAME. This works even if the IFRAME is on an other domain (cross domain). postMessage is supported in:
Resources: