OutputDir no longer respected from config file

[michaeljherrmann]

In playwright.config.json I have:

{
  "outputDir": "/tmp/playwright-mcp-output"
}

This used to be respected for screenshots in v0.0.37, but no longer works in the latest version (v0.0.39). It seems that the output goes to /tmp/playwright-output/ regardless of my setting.

[pavelfeldman]

I just checked and it works properly. We'll need exact steps that we can run locally to repro it.

[michaeljherrmann]

Here's a simple script demonstrating the issue.

Update the IMAGE to the latest version to see the output path for the screenshot change in the mcp server response. e.g.
IMAGE="mcr.microsoft.com/playwright/mcp:v0.0.39"

With v0.0.37, my custom path is used in the result of the mcp screenshot
await page.screenshot({\nfullPage: true,\n path: '/tmp/custom-mcp-output/google.png',\n scale: 'css',\n type: 'png'\n});

While when changing to v0.0.39, the path changes
await page.screenshot({\nfullPage: true,\n path: '/tmp/playwright-output/google.png',\n scale: 'css',\n type: 'png'\n});

#!/bin/bash

# Simple script: Navigate to Google and take screenshot with custom output directory
IMAGE="mcr.microsoft.com/playwright/mcp:v0.0.37"
CONFIG_FILE="./playwright.config.json"

# Create Playwright config file to change output directory
cat > "$CONFIG_FILE" << EOF
{
  "outputDir": "/tmp/custom-mcp-output",
  "headless": true,
  "browser": "chromium"
}
EOF

echo "Created config: $CONFIG_FILE"

{
    echo '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"test","version":"1.0"}}}'
    sleep 2
    echo '{"jsonrpc":"2.0","method":"notifications/initialized","params":{}}'
    sleep 2
    echo '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"browser_navigate","arguments":{"url":"https://google.com"}}}'
    sleep 2
    echo '{"jsonrpc":"2.0","id":3,"method":"tools/call","params":{"name":"browser_take_screenshot","arguments":{"filename":"google.png","fullPage":true}}}'
} | docker run -i --rm --init \
    -v "./playwright.config.json:/app/playwright.config.json" \
    $IMAGE \
    --config /app/playwright.config.json | jq .

[pavelfeldman]

while I am looking at it could you check 0.0.40?

[michaeljherrmann]

It doesn't look like a docker image has been released yet, the latest is 0.0.39: https://mcr.microsoft.com/en-us/artifact/mar/playwright/mcp/tags