AFD Premium - Redirect adds a Trailing Slash when redirecting to mobile app

wael hammami 0

Hello,

We have an OpenID Connect provider behind an Azure Front Door Classic, and everything is working as expected. We are currently migrating our infrastructure to a new Azure tenant where we have deployed the same application behind an Azure Front Door Premium.

We are encountering a problem when making authentication callbacks to our web application. The callbacks work fine, but when we try to make authentication callbacks to our mobile app, there is a trailing slash in the redirection URL.

we expect to recieve: app.company.consumers://home?code=_W*****

but

we are redirected to recieve: app.company.consumers://home**/?code=gkw*

how could we fix the issue and not having the Trailing Slash added?

Thanks

Ganesh Patapati 1,270 Reputation points Microsoft Vendor

2024-08-23T12:33:07.5433333+00:00
Hi wael hammami,

Welcome to the Microsoft Q&A Platform! Thank you for reaching out and asking your question.

To better assist you with the issue you're facing regarding the Trailing Slash when redirecting to mobile app, could you please provide the following details or screenshot of the page:

Traffic Flow:

Could you clarify the flow of traffic in your setup? Specifically, from where to where is the traffic flowing?

Redirection Details:

Are you managing the redirection through Azure Front Door or is it being handled by your authentication provider?

Type of Authentication:

What type of authentication are you using?

Routing Rules and URL Rewrites:

If possible, please share details about the routing rules and any URL rewrite rules you have configured in Azure Front Door Premium.

With these details, we’ll be in a better position to troubleshoot the issue and provide you with a solution.

Thank you!
Ganesh Patapati 1,270 Reputation points Microsoft Vendor

2024-08-26T18:44:28.81+00:00

Hi wael hammami,

I hope you're doing well!

I wanted to follow up and see if you’ve had a chance to review my previous response regarding the issue. If you could provide more details, we’d be happy to assist you further and work towards a resolution.

Looking forward to your update!

Best regards,

Ganesh Patapati
Ganesh Patapati 1,270 Reputation points Microsoft Vendor

2024-08-27T18:52:56.4033333+00:00

Hi wael hammami,

Greetings of the day!

I wanted to follow up on this thread. Could you please review the last comment and provide any additional information needed to move the thread forward?

If you have any further questions or need additional assistance, please don’t hesitate to reach out. We’re here to help!

Best regards,

Ganesh Patapati
wael hammami 0 Reputation points

2024-08-28T08:43:25.4133333+00:00

Hello,

Thnaks for your answer and sorry for delays. Please find below answer to your question

Traffic Flow:

Could you clarify the flow of traffic in your setup? Specifically, from where to where is the traffic flowing?

in the Oauth2 authorization code flow the flow start from the mobile app that open the browser and send the call to the /auth endpoint on the oidc provider. after the user authentication the oidc provider send a callback to the app via a deeplink (not https)

app.company.consumers://home

Redirection Details:

Are you managing the redirection through Azure Front Door or is it being handled by your authentication provider?

the oidc privider runing on an Azure app service send the flow back to the mobile app

Type of Authentication:

What type of authentication are you using?

Oauth2 authorization code flow with PKCE

Routing Rules and URL Rewrites:

If possible, please share details about the routing rules and any URL rewrite rules you have configured in Azure Front Door Premium.

we don't have routing rules for the outgoing flow, the oidc provider receive the redirect_uri from the app in the call to the /auth endpoint and he seend back authentication code to this deeplink/redirect_uri but I think more that there is an url_normalization step done by the front door or the Azure app service.

best regards,
Ganesh Patapati 1,270 Reputation points Microsoft Vendor

2024-09-23T10:18:52.2966667+00:00

Hello wael hammami,

We appreciate your patience!

I Understand that you are unable to perform AFD Premium - Redirect adds a Trailing Slash when redirecting to mobile app.

To troubleshoot further, we will need a specialized 1:1 session, where a support engineer can check the backend logs to pinpoint the issue. If you have a support plan you may file a support ticket, else please do let us know, we will try and help you get a one-time free technical support.

P.S: We will be able to provide you one-time support if and only if your subscription is not managed by a CSP

Regards,

Ganesh
Ganesh Patapati 1,270 Reputation points Microsoft Vendor

2024-09-24T14:15:33.2+00:00

Hello wael hammami,

Greetings of the day!

I would like to follow up with the thread.

Please read the previous comment so that your issue may be get the resolution.

If you need any further assistance, please don't hesitate to reach out to us.

We are happy to assist you.

Best wishes,

Ganesh
wael hammami 0 Reputation points

2024-09-24T15:42:50.7866667+00:00

thank you @Ganesh Patapati I hace opened a ticket to the support and we are investigating more at the app service side
Ganesh Patapati 1,270 Reputation points Microsoft Vendor

2024-09-25T18:10:38.46+00:00

Hello wael hammami,

Good day!

Okay, continue working with that in the meantime. If you are fine, please share the support number in the Private chat in private messaging, so that we can also track it. Once the answer is received, we will post it as a public for the benefit of other community members.

Best wishes,

Ganesh

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