By tommx67 - 10/31/2019
I am coding an old webforms application to use SAML authentication, and I'm having a problem that I cannot seem to find a cause, let alone a solution for.
This is a problem that only occurs on IIS or Azure, but not on localhost. Basically, when I click the button that is supposed to send the saml request to the IdP, it seems to instead reload the page, but the browser is blank unless I refresh. Digging deeper, when I open up the page inspector on Chrome, the network tab indicates that when the button is pressed, the Post has a status code of 200 rather than 302 which is what I'd expect with a SAML redirect.
I honestly don't even know where to look and none of the other developers on my team has a clue what is going on. We assume the issue to be code related, but that's about it.
Help!
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By ComponentSpace - 10/31/2019
On the page where you call SAMLServiceProvider.InitiateSSO, are you writing to the HTTP response? If so, this can override the 302 that we're attempting to return with a 200 response.
Also, take a look at the ExampleServiceProvider project under the Examples\SSO\WebForms folder and compare the code where it calls SAMLServiceProvider.InitiateSSO with your code.
Let us know what you find. Thanks.
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