Hi, I've posted this question on SO, any help will be appreciated. I have 2 days left to finish this before you guys shut down V1.
Solved! Go to Solution.
Strangely, enabling all popups on the browser makes the Dropbox.Choose to come up, but now with this error.
And the chooser window comes up with this error in it.
|error||"Origin does not match any app domain"|
In my App I do have this redirect URL set.