Hi All, 

I have a requirement where i need to get the id of a field in case layout using VF Page as sidebar component in the service console.
I have created a VF page and added a javascript in it.
Below is the javascript code:

var fId = parent.document.getElementById('frameId');

frameId is the Id of the case layout IFRAME.

In the browser console i am getting below error
Blocked a frame with origin "https://****.visual.force.com" from accessing a cross-origin frame.

I have checked and found out this related to "Same Origin Policy"
http://stackoverflow.com/questions/3076414/ways-to-circumvent-the-same-origin-policy

How can we overcome this in VF Page??