Suspend and resume of WD ABAP applicaiton support in the Portal

Hello,
I am implementing Suspend and resume feature in WD ABAP. It works fine in NWBC and also in stand alone. But in the portal it does not seem to work. I have done the following.
1. Created a resume pulg (The applicaiton is suspended as I can see the state to suspend in the WDDOSTATECHANGED method.
2. The navigation in the portal is in place and WD applicaiton is replaced by my target BSP
3. I am NOT firing any plugs so there is no problem here
Now what is not happening is the following.
1. The sap-wd-resumeurl is not part of the url parameters so I am not sure when the WD applicaiton is suspended this parameter is really sent or not?
2. Since I do not have the resume URL when I press the back in the portal window (right hand side top of the page) the resume plug is getting fired. But the parameters that I have set in the BSP are not part of the url parameters in the resume plug
3. If I explicitly pass the sap-wd-resumeurl as a url paramter to the BSP (hard code the resume URL since I know the PCD path of my WD iview) and then use this URL to naivagate from the BSP then the WD applicaiton is started but the resume plug is not fired. In SM04 I can see a new session created now.
4. Step 4 works fine (the suspend and resume) works fine when I repeat it the second time.
A quick help will be really appriciated. I am on SP14 of NW 7.0
Thanks and best regards,
Harish.

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