when i use a payment button 'buy now' in paypal [create a buy-now button] , I'm suppose to be able to add variables to choose the form method (default is GET, I want POST, because it is suppose to contains additional information about the payment) the option is called 'rm' for 'return method', [rm option described here] , and can have 3 values : 0, 1 or 2. 0 and 1 are for GET method, 2 is for POST method for the redirection url. To works it needs the other variable 'return' to be set to the url for redirection but the option 'return' cannot be set, it creates an error in the form : "Unsupported variable return" and when the option 'return' is not set, the option 'rm=2' does nothing what can i do ?
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