Object moved to here - C# , sharepoint loginpage error

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C#

SharePoint2013

I face a weird error intermittently for some users , when i hit the URL. In the pageload event of the code , i am redirecting it to the login URL returned to me , by calling a webservice. Snapshot below

Response.Redirect("string loginurl returned by webservice");

Error is "OBJECT MOVED TO HERE". I am unable to attach error screenshot , but this is the error in browser.

For some users , it just redirects it fine without this error. For some users , i face above error.


Any assistance would be really helpful. Looking forward for your advice please. Thanks.

What I have tried:

I tried to use below options by referring some links , but doesnt work

1. Response.RedirectPermanent();
2. Set the 2nd parameter to false in Response.Redirect();
3. Set Response.Flush();
4. Set Response.RedirectLocation = "url";
5. Cleared browser cache history