Troubleshooting
Problem
DataPower is preventing POST based HTTP redirect in accordance with RFC and displays this as part of the error in the logs: Redirect and failed due to non idempotent request method. (RFC 2616 sec 10.3)
Symptom
This technote pertains to the following errors.
Example 1: This example shows the service getting the following message: a Backside header failed to parse due to: Failed to establish a backside connection with a HTTP Redirect and failed due to non idempotent request method. (RFC 2616 sec 10.3) message.
web-application-firewall (CookieEncrypt): Backside header failed to
parse due to: Failed to establish a backside connection
12:20:53 webapp-firewall warn 60452 10.176.3.97 HTTP Redirect from
'http://10.176.3.97:8080/cgi-bin/WebObjects.exe/IndvGate.woa/5/wo/2jHo28
QYOlhC2RZ1XQ15DE5OKo8/0.1.2.27.3.SecureSignOn.1' failed due to non
idempotent request method. (RFC 2616 sec 10.3)
Example 2: This example shows an HTTP response code 302,HTTP Redirect and failed due to non idempotent request method - RFC 2616 sec 10.3 message.
Wed May 21 2008 10:39:11 [mpgw][info] mpgw(ECP-MPGW):
tid(369602)[9.65.237.170]: HTTP response code 302 for
'http://9.65.237.170:8080/forum/ucplogin.php?mode=login'
Wed May 21 2008 10:39:11 [mpgw][warn] mpgw(ECP-MPGW):
tid(369602)[9.65.237.170]: HTTP Redirect from
'http://9.65.237.170:8080/forum/ucplogin.php?mode=login' failed due to
non idempotent request method - RFC 2616 sec 10.3.
Wed May 21 2008 10:39:11 [mpgw][error] mpgw(ECP-MPGW):
tid(369602)[9.65.237.170]: Backside header failed to parse due to:
Failed to establish a backside connection
Example 1: This example shows the service getting the following message: a Backside header failed to parse due to: Failed to establish a backside connection with a HTTP Redirect and failed due to non idempotent request method. (RFC 2616 sec 10.3) message.
web-application-firewall (CookieEncrypt): Backside header failed to
parse due to: Failed to establish a backside connection
12:20:53 webapp-firewall warn 60452 10.176.3.97 HTTP Redirect from
'http://10.176.3.97:8080/cgi-bin/WebObjects.exe/IndvGate.woa/5/wo/2jHo28
QYOlhC2RZ1XQ15DE5OKo8/0.1.2.27.3.SecureSignOn.1' failed due to non
idempotent request method. (RFC 2616 sec 10.3)
Example 2: This example shows an HTTP response code 302,HTTP Redirect and failed due to non idempotent request method - RFC 2616 sec 10.3 message.
Wed May 21 2008 10:39:11 [mpgw][info] mpgw(ECP-MPGW):
tid(369602)[9.65.237.170]: HTTP response code 302 for
'http://9.65.237.170:8080/forum/ucplogin.php?mode=login'
Wed May 21 2008 10:39:11 [mpgw][warn] mpgw(ECP-MPGW):
tid(369602)[9.65.237.170]: HTTP Redirect from
'http://9.65.237.170:8080/forum/ucplogin.php?mode=login' failed due to
non idempotent request method - RFC 2616 sec 10.3.
Wed May 21 2008 10:39:11 [mpgw][error] mpgw(ECP-MPGW):
tid(369602)[9.65.237.170]: Backside header failed to parse due to:
Failed to establish a backside connection
[{"Line of Business":{"code":"LOB77","label":"Automation Platform"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SS9H2Y","label":"IBM DataPower Gateway"},"ARM Category":[{"code":"a8m50000000CdrHAAS","label":"DataPower-\u003EDeveloper (DV)"}],"ARM Case Number":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Version(s)"}]
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Document Information
Modified date:
08 June 2021
UID
swg21318593