php - Paypal Express Instant Update, no callback for default preferred address

Question

My Paypal express checkout is working fine (sandbox and live). The payment is fine. I need to get the shipping address for calculating shipping price and did that using callback successfully. But a problem, when user logs into paypal, their preferred shipping address is listed. Paypal is not doing callback for this address. It does the callback when new address is entered or address is changed. In that case the shipping charge is returning correct (so I guess there is no error in my callback script). But why it is not making the callback for the preferred address immediately? It takes the default flat shipping amount sent. I searched on the web but find no answer. I checked the paypal console via chrome and found "Uncaught ReferenceError: ShippingHandling is not defined". Am I missing something in my request or other please?

Answer 1

我的问题实际上已经解决了。谷歌浏览器太疯狂了。它的缓存很烂。浪费了我一整天。从来没有想过贝宝也会受到浏览器缓存的影响。