Symptom
- A blank home screen appear for some users upon login.
- The error "Promise.withResolvers is not a function" shows in the console using the Browser Developer tools.
Environment
SAP S/4HANA Cloud Public Edition 2508
Reproducing the Issue
- Log in to the system.
- Observe that the home screen appears blank after login.
Cause
With the OpenUI5 (SAPUI5 core) commits 4adc461 and e397413, included since SAPUI5 1.136.2 and 1.138.0 respectively, use of the native JavaScript API Promise.withResolvers was added internally.
The error "Promise.withResolvers is not a function" can be caused by using a browser that is either outdated or not one of the browsers supported by SAPUI5.
Resolution
Updating to the latest browser version, as per Browser and Platform Support - Documentation - Demo Kit - SAPUI5 SDK.
Please notice that the most recent Browsers versions do not support Windows 7.
The minimum supported version is Windows 10, SAP recommends updating to Windows 11.
See Also
Keywords
blank home screen, sap test system, promise.withresolvers, sapui5, javascript api, browser compatibility, outdated browser, sap identity and access management, sap test system issue, sapui5 supported browsers, 2508, public cloud, s/4hana cloud, 1.136.2, SAPUI5, public edition, Promise.withResolvers is not a function , KBA , CA-UI5-COR , Core and Runtime , CA-FLP-FE-UI , SAP Fiori Launchpad User Interface , Problem
SAP Knowledge Base Article - Public