diff --git a/code/frameworks/angular/src/client/angular-beta/AbstractRenderer.ts b/code/frameworks/angular/src/client/angular-beta/AbstractRenderer.ts
index ec5c2ac7ba52..9533a472fa05 100644
--- a/code/frameworks/angular/src/client/angular-beta/AbstractRenderer.ts
+++ b/code/frameworks/angular/src/client/angular-beta/AbstractRenderer.ts
@@ -201,7 +201,7 @@ export abstract class AbstractRenderer {
 
     const currentStoryRender = {
       storyFnAngular,
-      moduleMetadataSnapshot: stringify(moduleMetadata),
+      moduleMetadataSnapshot: stringify(moduleMetadata, { allowFunction: false }),
     };
 
     this.previousStoryRenderInfo.set(targetDOMNode, currentStoryRender);
diff --git a/code/frameworks/angular/template/stories/basics/component-with-provider/di.component.ts b/code/frameworks/angular/template/stories/basics/component-with-provider/di.component.ts
index 11335b4131c8..e3e8a28ac18f 100644
--- a/code/frameworks/angular/template/stories/basics/component-with-provider/di.component.ts
+++ b/code/frameworks/angular/template/stories/basics/component-with-provider/di.component.ts
@@ -23,6 +23,6 @@ export class DiComponent {
   }
 
   elRefStr(): string {
-    return stringify(this.elRef, { maxDepth: 1 });
+    return stringify(this.elRef, { maxDepth: 1, allowFunction: false });
   }
 }
diff --git a/code/lib/channels/src/postmessage/index.ts b/code/lib/channels/src/postmessage/index.ts
index e1c7332121b6..267e8a34f18a 100644
--- a/code/lib/channels/src/postmessage/index.ts
+++ b/code/lib/channels/src/postmessage/index.ts
@@ -20,7 +20,7 @@ const { document, location } = global;
 
 export const KEY = 'storybook-channel';
 
-const defaultEventOptions = { allowFunction: true, maxDepth: 25 };
+const defaultEventOptions = { allowFunction: false, maxDepth: 25 };
 
 // TODO: we should export a method for opening child windows here and keep track of em.
 // that way we can send postMessage to child windows as well, not just iframe
diff --git a/code/lib/channels/src/websocket/index.ts b/code/lib/channels/src/websocket/index.ts
index b4530de965c9..a46df1c28610 100644
--- a/code/lib/channels/src/websocket/index.ts
+++ b/code/lib/channels/src/websocket/index.ts
@@ -60,7 +60,11 @@ export class WebsocketTransport implements ChannelTransport {
   }
 
   private sendNow(event: any) {
-    const data = stringify(event, { maxDepth: 15, allowFunction: true });
+    const data = stringify(event, {
+      maxDepth: 15,
+      allowFunction: false,
+      ...global.CHANNEL_OPTIONS,
+    });
     this.socket.send(data);
   }
 
diff --git a/code/ui/blocks/src/blocks/SourceContainer.tsx b/code/ui/blocks/src/blocks/SourceContainer.tsx
index c24b320c4330..fbb019a6bd32 100644
--- a/code/ui/blocks/src/blocks/SourceContainer.tsx
+++ b/code/ui/blocks/src/blocks/SourceContainer.tsx
@@ -11,7 +11,7 @@ import { stringify } from 'telejson';
 
 type ArgsHash = string;
 export function argsHash(args: Args): ArgsHash {
-  return stringify(args);
+  return stringify(args, { allowFunction: false });
 }
 
 export interface SourceItem {