PayPal HTTP 1.1 and PayPal HTML Form -


sorry if sounds stupid, after getting mail.

in statement of 18 october 2011, indicated expand number of ip addresses www.paypal.com improve performance, scalability , availability of our website. in context, discontinue support http 1.0 7 october 2013. following change , of our dealers may have difficulty in validating retransmission of ipn ( instant payment notification ) data or send pdt ( payment data transfer ) www.paypal.com , ipnpb.paypal.com . case when ipn or pdt scripts using http 1.0 , not include header "host : www.paypal.com " or " host: ipnpb.paypal.com " in http request .

additional information october 7, 2013 , applications received have header "host" in accordance http 1.1 specification. header not required under http 1.0 . ipn , pdt scripts use http 1.0 may fail error " http/1.0 400 bad request " type 7 october 2013. consequently, ipn messages can not validated or pdt scripts not retrieve information transactions.

action required before october 7, 2013 vendors must update ipn , / or pdt scripts use http 1.1 , http include "host" header , protocol " connection: close " in script retransmission ipn data.

does apply html form basics website payments standard , because can tell applies scripts making remote calls.

it doesn't apply website payments standard buttons; applies make - - remote calls server paypal's server, such instant payment notification.


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