[DMN Designer] [IE11] Undo throws an Error ------------------------------------------ Key: DROOLS-2816 URL: https://issues.jboss.org/browse/DROOLS-2816 Project: Drools Issue Type: Bug Components: DMN Editor Affects Versions: 7.10.0.Final Environment: IE11 Reporter: Jozef Marko Assignee: Daniel José dos Santos Labels: drools-tools Fix For: 7.12.0.Final Undo of action throws and error dialog with title: *An error happened [com.google.gwt.core.client.JavaScriptException: (TypeError) : Object doesn't support property or method 'startsWith']. Do you want to undo the last action?* h2. Manual Acceptance test With DROOLS-2820 test steps to reproduce. - IE (/) - Chrome (/) - Firefox (/)