reviewed: fix: detached frame error & feature: Puppeteer launch arguments support

src/puppeteer/README.md

@@ -8,7 +8,10 @@ A Model Context Protocol server that provides browser automation capabilities us
 
 - **puppeteer_navigate**
   - Navigate to any URL in the browser
-  - Input: `url` (string)
+  - Inputs:
+    - `url` (string, required): URL to navigate to
+    - `launchOptions` (object, optional): PuppeteerJS LaunchOptions. Default null. If changed and not null, browser restarts. Example: `{ headless: true, args: ['--user-data-dir="C:/Data"'] }`
+    - `allowDangerous` (boolean, optional): Allow dangerous LaunchOptions that reduce security. When false, dangerous args like `--no-sandbox`, `--disable-web-security` will throw errors. Default false.
 
 - **puppeteer_screenshot**
   - Capture screenshots of the entire page or specific elements
@@ -61,6 +64,7 @@ The server provides access to two types of resources:
 - Screenshot capabilities
 - JavaScript execution
 - Basic web interaction (navigation, clicking, form filling)
+- Customizable Puppeteer launch options
 
 ## Configuration to use Puppeteer Server
 Here's the Claude Desktop configuration to use the Puppeter server:
@@ -93,6 +97,39 @@ Here's the Claude Desktop configuration to use the Puppeter server:
 }
 ```
 
+### Launch Options
+
+You can customize Puppeteer's browser behavior in two ways:
+
+1. **Environment Variable**: Set `PUPPETEER_LAUNCH_OPTIONS` with a JSON-encoded string in the MCP configuration's `env` parameter:
+
+    ```json
+    {
+      "mcpServers": {
+        "mcp-puppeteer": {
+          "command": "npx",
+          "args": ["-y", "@modelcontextprotocol/server-puppeteer"]
+          "env": {
+            "PUPPETEER_LAUNCH_OPTIONS": "{ \"headless\": false, \"executablePath\": \"C:/Program Files/Google/Chrome/Application/chrome.exe\", \"args\": [] }",
+            "ALLOW_DANGEROUS": "true"
+          }
+        }
+      }
+    }
+    ```
+
+2. **Tool Call Arguments**: Pass `launchOptions` and `allowDangerous` parameters to the `puppeteer_navigate` tool:
+
+   ```json
+   {
+     "url": "https://example.com",
+     "launchOptions": {
+       "headless": false,
+       "defaultViewport": {"width": 1280, "height": 720}
+     }
+   }
+   ```
+
 ## Build
 
 Docker build:
@@ -103,4 +140,4 @@ docker build -t mcp/puppeteer -f src/puppeteer/Dockerfile .
 
 ## License
 
-This MCP server is licensed under the MIT License. This means you are free to use, modify, and distribute the software, subject to the terms and conditions of the MIT License. For more details, please see the LICENSE file in the project repository.
+This MCP server is licensed under the MIT License. This means you are free to use, modify, and distribute the software, subject to the terms and conditions of the MIT License. For more details, please see the LICENSE file in the project repository.