After updating Google Chrome to Release 80, the following error occurs when using any Live Data Connection in SAP Analytics Cloud (SAC):
- "Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource."
- "Possible causes: Third-party cookies are blocked, or CORS is not configured correctly. For more information, see our troubleshooting page."
- SAP Analytics Cloud (Enterprise)
- Google Chrome 80
Reproducing the Issue
- Log in to SAP Analytics Cloud
- Open a Story based on a Live Data Connection
After the rollout of Google Chrome 80, Google has activated stricter cookie handling for the SameSite attribute. By default, SAP Applications such as HANA, BW, BW/4HANA and S/4HANA do not set the SameSite attribute, so as a result, user authentication to live data connections to these data sources will fail, causing stories to also fail (unable to retrieve data) based on these Live connection types.
For more information, refer to the resources below:
- SAPAnalytics.cloud Blog - https://www.sapanalytics.cloud/direct-live-connections-in-sap-analytics-cloud-and-samesite-cookies/
- Frequently Asked Questions (FAQs) - https://blogs.sap.com/2020/02/08/faq-samesite-cookie-and-direct-live-connections-in-sap-analytics-cloud/
- SAP Analytics Cloud Help - SameSite Cookie Configuration for Live Data Connections
To solve the problem caused by the change of web browser behavior, the back-end systems need to set the following two cookie attributes for all cookies:
For data source specific steps on how to set these cookie attributes, refer to the SAP Note 2887651 - Issues with SameSite cookie handling for the latest information.
*Important* - to reduce the risk of issues with SAP Analytics Cloud Stories in productive use, please make these changes as soon as possible where this policy will be activated.
- If you have no way to implement the rule set or if you have unencrypted HTTP and no way to change to HTTPS, you can revert the Chrome browser to its previous behavior by setting a browser policy. See Cookie Legacy SameSite Policies for details.
- Another alternative is to switch to another supported SAP Analytics Cloud browser such as Microsoft Edge (full support) and Microsoft Internet Explorer 11 (limited support). See Client Software Requirements.
- As of February 2020, only Google Chrome version 80 and higher has implemented the SameSite=Lax default cookie setting.
- For SAP BusinessObjects Live Data Connect, please follow the resolution steps in KBA 2889975 - SAP BusinessObjects Live Data Connect and Google Chrome 80: connection failure
- 2889975 - SAP BusinessObjects Live Data Connect and Google Chrome 80: connection failure
- 2569847 - Where can you find SAC user assistance (help) to use, configure, and operate it more effectively?
- Have a question? Ask it here and let our amazing SAP community help! Or reply and share your knowledge!
- 2487011 - What information do I need to provide when opening an incident for SAP Analytics Cloud?
- SAP Analytics Cloud > Learning > Guided Playlists
- SAP Analytics Cloud > Learning > Guided Playlists > Getting Support
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