Overview
You may face Process Status Viewer does not open up in Instances under the Management option. The page is blank and the exception "'fetch' is undefined" is seen in the IE11 browser console. The issue is observed in Aurea Process 2020 R1 version 10.0.20.02.
Solution
By default, fetch doesn't work in IE 11. This issue has been fixed in release 2021 R1/ 12.0 version.
It is recommended to update to this or a later version.
However, for the 2020 R1 version you can use a workaround:
1. Download the attached zip file and extract it to the server location.
2. Rename the app.bundled.js file to app.bundled.js_org located under $IBM_AppServer_Home\profiles\<profile_anme>\installedApps\<cell_name>\sbm_war.ear\sbm.war\bpmportal\js-diagram\build\
Copy app.bundled.js from extracted folder and paste it to $IBM_AppServer_Home\profiles\<profile_name>\installedApps\<cell_name>\sbm_war.ear\sbm.war\bpmportal\js-diagram\build\ folder.
3. Copy the polyfill-ie11-nodelist-foreach.js from extracted location and paste it to $IBM_AppServer_Home\profiles\<profile_name>\installedApps\<cell_name>\sbm_war.ear\sbm.war\bpmportal\js-diagram\src\utils
3. Rename ProcessStatusViewer.js located $IBM_AppServer_Home\profiles\<profile_name>\installedApps\<cell_name>\sbm_war.ear\sbm.war\bpmportal\js-diagram\src
Copy ProcessStatusViewer.js from extracted folder and paste it to $IBM_AppServer_Home\profiles\<profile_name>\installedApps\<cell_name>\sbm_war.ear\sbm.war\bpmportal\js-diagram\src folder.
4. Clear the browser cache and try to load the process status viewer.
Note: The same artifacts can be used with other application server, but they should be placed under $SBM_HOME\webapps\sbm
$IBM_AppServer_Home\profiles\<profile_name>\installedApps\<cell_name>\sbm_war.ear = $SBM_HOME\webapps\sbm