remove websocket connection from postmessage channel package

code/lib/channel-postmessage/package.json

@@ -43,7 +43,6 @@
     "prep": "../../../scripts/prepare/bundle.ts"
   },
   "dependencies": {
-    "@storybook/channel-websocket": "7.1.0-alpha.30",
     "@storybook/channels": "7.1.0-alpha.30",
     "@storybook/client-logger": "7.1.0-alpha.30",
     "@storybook/core-events": "7.1.0-alpha.30",

code/lib/channel-postmessage/src/index.ts

@@ -2,13 +2,12 @@ import { global } from '@storybook/global';
 import * as EVENTS from '@storybook/core-events';
 import { Channel } from '@storybook/channels';
 import type { ChannelHandler, ChannelEvent, ChannelTransport } from '@storybook/channels';
-import { WebsocketTransport } from '@storybook/channel-websocket';
 import { logger, pretty } from '@storybook/client-logger';
 import { isJSON, parse, stringify } from 'telejson';
 import qs from 'qs';
 import invariant from 'tiny-invariant';
 
-const { document, location, CONFIG_TYPE } = global;
+const { document, location } = global;
 
 interface Config {
   page: 'manager' | 'preview';
@@ -299,14 +298,6 @@ const getEventSourceUrl = (event: MessageEvent) => {
 export function createChannel({ page }: Config): Channel {
   const transports: ChannelTransport[] = [new PostmsgTransport({ page })];
 
-  if (CONFIG_TYPE === 'DEVELOPMENT') {
-    const protocol = window.location.protocol === 'http:' ? 'ws' : 'wss';
-    const { hostname, port } = window.location;
-    const channelUrl = `${protocol}://${hostname}:${port}/storybook-server-channel`;
-
-    transports.push(new WebsocketTransport({ url: channelUrl, onError: () => {} }));
-  }
-
   return new Channel({ transports });
 }
 

code/yarn.lock

@@ -5948,7 +5948,6 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@storybook/channel-postmessage@workspace:lib/channel-postmessage"
   dependencies:
-    "@storybook/channel-websocket": 7.1.0-alpha.30
     "@storybook/channels": 7.1.0-alpha.30
     "@storybook/client-logger": 7.1.0-alpha.30
     "@storybook/core-events": 7.1.0-alpha.30