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Saravanan_81539's avatar
Saravanan_81539
Icon for Nimbostratus rankNimbostratus
Sep 03, 2010

AJAX call is not working on F5 load balancer web farm setup

I have the following web farm setup in production server.

 

Browser --> HTTPS --> Load Balancer --> HTTP --> webserver node

 

F5 Load balancer handles off box SSL termination. It implies that SSL resides on F5 load balancer.

 

 

Problem Statement: Ajax calls do not go through unless "Access data sources across domains" option is enabled in IE security settings.

 

 

I have the similar setup in staging server except F5 Load balancer. The ASP.Net application makes perfect AJAX calls on both HTTP and HTTPS.

 

However, the staging server web farm use windows NLB and SSL resides on individual web server nodes.

 

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  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Oct 07, 2010
    Hi Saravanan,

     

     

    I would suggest using a browser addon like HttpFox for Firefox or Fiddler for IE/FF to record the HTTP/S communication on the client. Once you have an exact understanding of what's failing, you can start looking for a solution on LTM using config changes or an iRule.

     

     

    Aaron
  • lakshmianrayana's avatar
    lakshmianrayana
    Icon for Altostratus rankAltostratus
    Apr 11, 2017

    hi have same issue while AJAX in webpage is not working and redirect issue 302 i found using httpwatch

     

    while clicking AJAX page on website we getting "error loading page" error

     

    please help us resolve issue.