'Update Fail' when approving ritm from service portal

[tsoct]

Hi all,

I cloned the 'My Approvals' widget in the Service Portal to allows users without the 'approve_user' role to action approvals.

// 1st changes on Server script

if (input.op == 'approved' || input.op == 'rejected') {
var app = new GlideRecord("sysapproval_approver");
if (app.get(input.target)) {
 //var isMine = gs.hasRole("approval_admin") || (gs.hasRole("approver_user") && isApprovalMine(app))|| (isApprovalMine(app)); //Commented this
 varisMine = isApprovalMine(app); //replaced with this

//2nd changes on server script

data.showApprovals = true;//Add this
//data.showApprovals = gs.getUser().hasRole('approver_user');//Remove this

From Service Portal widget, with the script changes above, user without role is able to approve from widget. But clicking into the RITM, approve / reject will return Update failed. 

What did I missed? 

This works:

[GSReddy1]

Have you got the solution for this update error,if yes share in detail what all the modifications we need to to

[Govi]

Yes, I have implemented it as well, Please see the Link shared by "Ankur Bawiskar"