diff --git a/packages/core/src/stepFunctions/workflowStudio/handleMessage.ts b/packages/core/src/stepFunctions/workflowStudio/handleMessage.ts
index a3bc6a38d3a..83c921e1170 100644
--- a/packages/core/src/stepFunctions/workflowStudio/handleMessage.ts
+++ b/packages/core/src/stepFunctions/workflowStudio/handleMessage.ts
@@ -14,6 +14,7 @@ import {
     FileChangeEventTrigger,
     SyncFileRequestMessage,
     ApiCallRequestMessage,
+    UnsupportedMessage,
 } from './types'
 import { submitFeedback } from '../../feedback/vue/submitFeedback'
 import { placeholder } from '../../shared/vscode/commands2'
@@ -56,13 +57,21 @@ export async function handleMessage(message: Message, context: WebviewContext) {
             case Command.API_CALL:
                 apiCallMessageHandler(message as ApiCallRequestMessage, context)
                 break
+            default:
+                void handleUnsupportedMessage(context, message)
+                break
         }
     } else if (messageType === MessageType.BROADCAST) {
         switch (command) {
             case Command.LOAD_STAGE:
                 void loadStageMessageHandler(context)
                 break
+            default:
+                void handleUnsupportedMessage(context, message)
+                break
         }
+    } else {
+        void handleUnsupportedMessage(context, message)
     }
 }
 
@@ -206,3 +215,18 @@ function apiCallMessageHandler(request: ApiCallRequestMessage, context: WebviewC
     const apiHandler = new WorkflowStudioApiHandler(globals.awsContext.getCredentialDefaultRegion(), context)
     apiHandler.performApiCall(request).catch((error) => logger.error('%s API call failed: %O', request.apiName, error))
 }
+
+/**
+ * Handles unsupported or unrecognized messages by sending a response to the webview. Ensures compatibility with future
+ * commands and message types, preventing issues if the user has an outdated extension version.
+ * @param context The context object containing information about the webview environment
+ * @param command The command received from the webview
+ * @param messageType The type of the message received
+ */
+async function handleUnsupportedMessage(context: WebviewContext, originalMessage: Message) {
+    await context.panel.webview.postMessage({
+        messageType: MessageType.RESPONSE,
+        command: Command.UNSUPPORTED_COMMAND,
+        originalMessage,
+    } as UnsupportedMessage)
+}
diff --git a/packages/core/src/stepFunctions/workflowStudio/types.ts b/packages/core/src/stepFunctions/workflowStudio/types.ts
index 01748b8a1b0..68392956476 100644
--- a/packages/core/src/stepFunctions/workflowStudio/types.ts
+++ b/packages/core/src/stepFunctions/workflowStudio/types.ts
@@ -41,6 +41,7 @@ export enum Command {
     OPEN_FEEDBACK = 'OPEN_FEEDBACK',
     CLOSE_WFS = 'CLOSE_WFS',
     API_CALL = 'API_CALL',
+    UNSUPPORTED_COMMAND = 'UNSUPPORTED_COMMAND',
 }
 
 export type FileWatchInfo = {
@@ -61,6 +62,10 @@ export interface FileChangedMessage extends Message {
     trigger: FileChangeEventTrigger
 }
 
+export interface UnsupportedMessage extends Message {
+    originalMessage: Message
+}
+
 export interface InitResponseMessage extends Omit<FileChangedMessage, 'trigger'> {
     isSuccess: boolean
     failureReason?: string
diff --git a/packages/core/src/stepFunctions/workflowStudio/workflowStudioEditorProvider.ts b/packages/core/src/stepFunctions/workflowStudio/workflowStudioEditorProvider.ts
index 9d8748db589..b08be09cc46 100644
--- a/packages/core/src/stepFunctions/workflowStudio/workflowStudioEditorProvider.ts
+++ b/packages/core/src/stepFunctions/workflowStudio/workflowStudioEditorProvider.ts
@@ -6,11 +6,10 @@
 import * as vscode from 'vscode'
 import { getLogger } from '../../shared/logger/logger'
 import request from '../../shared/request'
-import fs from '../../shared/fs/fs'
 import { getClientId } from '../../shared/telemetry/util'
 import { telemetry } from '../../shared/telemetry/telemetry'
 import globals from '../../shared/extensionGlobals'
-import { getRandomString, getStringHash } from '../../shared/utilities/textUtilities'
+import { getStringHash } from '../../shared/utilities/textUtilities'
 import { ToolkitError } from '../../shared/errors'
 import { getTabSizeSetting } from '../../shared/utilities/editorUtilities'
 import { WorkflowStudioEditor } from './workflowStudioEditor'
@@ -80,7 +79,7 @@ export class WorkflowStudioEditorProvider implements vscode.CustomTextEditorProv
      * @private
      */
     private getWebviewContent = async () => {
-        let htmlFileSplit = this.webviewHtml.split('<head>')
+        const htmlFileSplit = this.webviewHtml.split('<head>')
 
         // Set asset source to CDN
         const source = isLocalDev ? localhost : cdn
@@ -93,20 +92,8 @@ export class WorkflowStudioEditorProvider implements vscode.CustomTextEditorProv
         const isDarkMode = theme === vscode.ColorThemeKind.Dark || theme === vscode.ColorThemeKind.HighContrast
         const tabSizeTag = `<meta name='tab-size' content='${getTabSizeSetting()}'>`
         const darkModeTag = `<meta name='dark-mode' content='${isDarkMode}'>`
-        let html = `${htmlFileSplit[0]} <head> ${baseTag} ${localeTag} ${darkModeTag} ${tabSizeTag} ${htmlFileSplit[1]}`
 
-        const nonce = getRandomString()
-        const localDevURL = isLocalDev ? localhost : ''
-        htmlFileSplit = html.split("script-src 'self'")
-
-        html = `${htmlFileSplit[0]} script-src 'self' 'nonce-${nonce}' ${localDevURL} ${htmlFileSplit[1]}`
-        htmlFileSplit = html.split('<body>')
-
-        const script = await fs.readFileText(
-            vscode.Uri.joinPath(globals.context.extensionUri, 'resources', 'js', 'vsCodeExtensionInterface.js')
-        )
-
-        return `${htmlFileSplit[0]} <body> <script nonce='${nonce}'>${script}</script> ${htmlFileSplit[1]}`
+        return `${htmlFileSplit[0]} <head> ${baseTag} ${localeTag} ${darkModeTag} ${tabSizeTag} ${htmlFileSplit[1]}`
     }
 
     /**
diff --git a/packages/toolkit/package.json b/packages/toolkit/package.json
index 42f4b9089a9..7fabb480239 100644
--- a/packages/toolkit/package.json
+++ b/packages/toolkit/package.json
@@ -4151,6 +4151,12 @@
                 "mac": "cmd+shift+v",
                 "when": "editorTextFocus && editorLangId == asl || editorTextFocus && editorLangId == asl-yaml"
             },
+            {
+                "command": "noop",
+                "key": "ctrl+z",
+                "mac": "cmd+z",
+                "when": "aws.stepFunctions.isWorkflowStudioFocused"
+            },
             {
                 "command": "aws.samcli.sync",
                 "key": "ctrl+shift+s",