SAP Persona screen Runs fine on IE but not on Chrome

Our users are using SAP Netweaver Portal to approve Purchase Requisition Workflows (ME54N). This screen opens up quite fine on Internet Explorer clearly showing Persona enhancements in ME54N. But when we open the same in Chrome, standard ME54N screen opens up instead of persona enhanced version.

Note:

1- We are accessing backend ECC workflows via UWL (Universal Work List) of SAP Netweaver Portal 7.4.

2- If we only go via SAP WebGUI, Persona enhancement works fine on both Chrome & IE. But When access the same persona screen via Netweaver Portal it works fine on IE but does not work on chrome.