And over a year later still usefull. Threads should never be closed just because of their age.

I needed to redirect my visitor to an external site (a payment provider) and pass the url to which the payment provider should redirect my visitors back, which happens to be the originating page.

Unfortunatly directing them to the Request.Url of the page (e.g. http://dnndev.me/Default.aspx?TabID=684 with "&payment=succesfull" added to it by the paymentprovider) doesn't work as visitors are instantly redirected to the friendly url (e.g. http://dnndev.me/HelloWorld and all parameters are stripped in the process (this can be considered a bug, it's not how url rewriting is supposed to work)

DotNetNuke.Entities.Tabs.TabController.CurrentPage.FullUrl doesn't provide the friendly url, but something like http://dnndev.me/en-us/helloworld.aspx which suffices as it doesn't get rewritten.

The thread may remain open for anyone how fiend an even better solution (= the friendly url)