fix(editor): Show execution error toast also if there is no error stack just message (#9526)

packages/editor-ui/src/components/WorkflowPreview.vue

@@ -14,7 +14,8 @@
 				[$style.openNDV]: nodeViewDetailsOpened,
 				[$style.show]: showPreview,
 			}"
-			:src="`${rootStore.baseUrl}workflows/demo`"
+			:src="iframeSrc"
+			data-test-id="workflow-preview-iframe"
 			@mouseenter="onMouseEnter"
 			@mouseleave="onMouseLeave"
 		/>
@@ -65,6 +66,10 @@ const insideIframe = ref(false);
 const scrollX = ref(0);
 const scrollY = ref(0);
 
+const iframeSrc = computed(() => {
+	return `${window.BASE_PATH ?? '/'}workflows/demo`;
+});
+
 const showPreview = computed(() => {
 	return (
 		!props.loading &&

packages/editor-ui/src/views/NodeView.vue

@@ -1328,7 +1328,10 @@ export default defineComponent({
 					}
 				}
 
-				if (!nodeErrorFound && data.data.resultData.error.stack) {
+				if (
+					!nodeErrorFound &&
+					(data.data.resultData.error.stack || data.data.resultData.error.message)
+				) {
 					// Display some more information for now in console to make debugging easier
 					console.error(`Execution ${executionId} error:`);
 					console.error(data.data.resultData.error.stack);