Edge in IE mode

awt7532 1

If the credential authentication is done in Edge, can the session be transfer to Edge in IE mode? For example, the authentication url is http://www.myapp.com running in Edge. After authentication, the url is redirected to http://www.myapp.com/mainapp/ but running in Edge IE mode. Can http://www.myapp.com and http://www.myapp.com/mainapp/ share the same session?
Thanks.

1 answer

XuDong Peng-MSFT 10,511 Reputation points Microsoft Vendor

2021-07-22T05:37:53.96+00:00

Hi @awt7532 ,

If you are using IE mode configured with Enterprise Mode Site List, it will be feasible.

The application might be configured to open in Internet Explorer mode with Single Sign On (SSO) enabled as part of the workflow. In these scenarios, you can configure specific cookies set by SSO to be sent from Microsoft Edge to Internet Explorer, and not need to re-authenticate.

But you need to be aware that session cookies can only be shared from Microsoft Edge to Internet Explorer. Reverse sharing of session cookies (from Internet Explorer to Microsoft Edge) is not possible. For more details, you could refer to this document: edge-ie-mode-add-guidance-cookieshare

Best regards,
Xudong Peng

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awt7532 1 Reputation point

2021-07-23T04:59:50.327+00:00

How many cookies can I set? How do I set the shared cookies? Do you have any examples?
Thanks.

XuDong Peng-MSFT 10,511 Reputation points Microsoft Vendor

2021-07-23T06:27:11.51+00:00

Hi @awt7532 , the Enterprise Mode site list XML has been extended to allow additional elements to specify cookies that need to be shared from a Microsoft Edge session with Internet Explorer. For example: <shared-cookie domain=".contoso.com" name="cookie1"></shared-cookie>. Have you read the document I mentioned above? And before you share the session, you need to configure IE mode:edge-ie-mode-policies

awt7532 1 Reputation point

2021-07-23T14:47:16.227+00:00

Yes I have. I set up local policy and everything worked fine except the scenarios I explained in my original question. I put the multiple shared-cookie tags in the site list.xml like below. It didn't work though. I wonder if I can have multiple cookies in the file.
Thanks.

<site-list version="21">
<shared-cookie domain=".test.com" name="cookie1"></shared-cookie>
<shared-cookie domain=".test.com" name="cookie2"></shared-cookie>
<shared-cookie host="host.test.com" name="cookie3"></shared-cookie>
<shared-cookie host="host.test.com" name="cookie4"></shared-cookie>
<created-by>
<tool>EMIESiteListManager</tool>
<version>12.0.0.0</version>
<date-created>03/24/2021 20:33:07</date-created>
</created-by>
<site url="host.test.com/myapp">
<compat-mode>Default</compat-mode>
<open-in>IE11</open-in>
</site>
</site-list>

XuDong Peng-MSFT 10,511 Reputation points Microsoft Vendor

2021-07-27T05:24:52.62+00:00

Hi @awt7532 , Yes, it can contain multiple cookies. You can also add, delete or modify the matching rules. After the site list is updated, it will re-evaluate the shared cookie set. For more details, you could refer to How cookie sharing works.
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