I have problem with alternate access mapping that make FBA threw exception

ahmed sharkaway 116

I have extended web application to internet zone and configure SQL FBA and all works as it supposed to be, but
when mapped it to real Ip in AAm it works but gives me this exception in logging in

System.InvalidOperationException: Not in claims forms auth .
at Microsoft.SharePoint.IdentityModel.SPClaimsUtility.GetFormsAuthenticationProvider(Uri context)
at Microsoft.SharePoint.IdentityModel.SPClaimsUtility.AuthenticateFormsUser(Uri context, String userName, String password)
at CustommMembership.ValidateUser(String userName, String password, Boolean rememberPassword)

1 answer

Emily Du-MSFT 47,296 Reputation points Microsoft Vendor

2020-12-28T09:02:16.993+00:00

@ahmed sharkaway
It may be caused by the zone configured under web application does not match the zone of alternate access mappings you have configured.

For example, you may have added a new access mappings corresponding to custom zone. You need to change the zone to be custom under the web application.

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ahmed sharkaway 116 Reputation points

2020-12-28T23:13:51.753+00:00

thanks for ur support
but all mappings matches corresponding zone

Emily Du-MSFT 47,296 Reputation points Microsoft Vendor

2021-01-01T09:19:35.953+00:00

@ahmed sharkaway
Which is the browser you are using?

Please try another browser to see if it still reports an error.

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ahmed sharkaway 116 Reputation points

2021-01-02T12:09:13.15+00:00

it works when I add new HTTPS mapping to aam and it works
but when I use chrome or edge user can't log in but ie , firefox,safari it works no issues

Emily Du-MSFT 47,296 Reputation points Microsoft Vendor

2021-01-04T01:45:34.467+00:00

@ahmed sharkaway
Please go to clear chrome and edge cache, then have a test.

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ahmed sharkaway 116 Reputation points

2021-01-06T09:55:13.373+00:00

I try to login in the server itself and outside through mobile too, but no difference , I checked cookies I found out the fedAuth cookie not stored in edge and chrome but others work fine no problem

Emily Du-MSFT 47,296 Reputation points Microsoft Vendor

2021-01-07T05:55:21.787+00:00

@ahmed sharkaway
Please follow below articles to troubleshoot the issue.

Effect on SharePoint sites that use ADFS/SAML and Forms Based Authentication in Chrome version 80+

Effect on customer websites and Microsoft services and products in Chrome version 80 or later

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I have problem with alternate access mapping that make FBA threw exception

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