pwa-launch-handler-test

Testing launch_handler / Chrome Link Capturing experimental flag. chrome://flags/#enable-user-link-capturing-pwa

Uses example code from MDN's "Using Service Workers" page. https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API/Using_Service_Workers

Usage:

npm i
node .

My test environment: OS: macOS Sonoma 14.1 Chrome: Version 121.0.6167.139 (Official Build) (arm64)

Test Scenarios for https://issues.chromium.org/issues/40255471#comment68

Scenario 1: chrome://flags/#enable-user-link-capturing-pwa is set to "Default" (experiment disabled), Default web browser set to Chrome.

1. Install and open "PWA Launch Handler Test" PWA window at http://localhost:8080/.
2. Copy/paste http://localhost:8080/index2.html into a separate OS application (e.g. Notes.app) and click on the link.

❌ Issue: Chrome opens index2.html in a new tab instead of the existing opened PWA window.

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Scenario 2: chrome://flags/#enable-user-link-capturing-pwa is set to "Enabled", Default web browser set to Chrome.

1. Install and open "PWA Launch Handler Test" PWA window at http://localhost:8080/.
2. Copy/paste http://localhost:8080/index2.html into a separate OS application (e.g. Notes.app) and click on the link.

⚠️ Workaround: Chrome opens index2.html in a Chrome tab first, then the window.open workaround in index2.js opens the existing opened PWA window and focuses it.

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Scenario 3: chrome://flags/#enable-user-link-capturing-pwa is set to "Enabled", Default web browser set to Chrome.

1. Remove <script type="text/javascript" src="index2.js"></script> from index2.html
2. Install and open "PWA Launch Handler Test" PWA window at http://localhost:8080/.
3. Copy/paste http://localhost:8080/index2.html into a separate OS application (e.g. Notes.app) and click on the link.

❌ Issue: Chrome opens index2.html in a Chrome tab, not the existing opened PWA window.

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Scenario 4: chrome://flags/#enable-user-link-capturing-pwa is set to "Default" (experiment disabled), Default web browser set to Firefox.

1. Install and open "PWA Launch Handler Test" PWA window at http://localhost:8080/.
2. Copy/paste http://localhost:8080/index2.html into a separate OS application (e.g. Notes.app) and click on the link.

❌ Issue: The OS opens index2.html in a new Firefox tab instead of the existing opened PWA window.

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Scenario 5: chrome://flags/#enable-user-link-capturing-pwa is set to "Enabled", Default web browser set to Firefox.

1. Install and open "PWA Launch Handler Test" PWA window at http://localhost:8080/.
2. Copy/paste http://localhost:8080/index2.html into a separate OS application (e.g. Notes.app) and click on the link.

❌ Issue: The OS opens index2.html in a new Firefox tab instead of the existing opened PWA window. Same result as Scenario 4.

Test Scenarios for https://issues.chromium.org/issues/324108010 window.open('index3.html', 'namedpopupwindow', 'popup');

Scenario 1: chrome://flags/#enable-user-link-capturing-pwa is set to "Default" (experiment disabled). Default web browser set to Chrome.

1. Install and open "PWA Launch Handler Test" PWA window at http://localhost:8080/.
2. Click the button to call window.open('index3.html', 'namedpopupwindow', 'popup');.

✅ Correct behavior: index3.html opens in a new PWA window with message "window.name: namedpopupwindow, has window.opener: true".

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Scenario 2: chrome://flags/#enable-user-link-capturing-pwa is set to "Enabled". Default web browser set to Chrome.

1. Install and open "PWA Launch Handler Test" PWA window at http://localhost:8080/.
2. Click the button to call window.open('index3.html', 'namedpopupwindow', 'popup');.

✅ Correct behavior: index3.html opens in a new PWA window with message "window.name: namedpopupwindow, has window.opener: true".

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Scenario 3: chrome://flags/#enable-user-link-capturing-pwa is set to "Enabled". Default web browser set to Chrome.

1. Open http://localhost:8080/, but don't install the app.
2. Click the button to call window.open('index3.html', 'namedpopupwindow', 'popup');.

✅ Correct behavior: index3.html opens in a popup window with message "window.name: namedpopupwindow, has window.opener: true".

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Scenario 4a: chrome://flags/#enable-user-link-capturing-pwa is set to "Default" (experiment disabled). Default web browser set to Chrome.

1. Install and open "PWA Launch Handler Test" PWA window at http://localhost:8080/.
2. Open the 3-dots menu in the upper-right corner and click "Open in Chrome".
3. Click the button to call window.open('index3.html', 'namedpopupwindow', 'popup');.

✅ Correct behavior: index3.html opens in a new PWA window with message "window.name: namedpopupwindow, has window.opener: true".

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Scenario 4b: chrome://flags/#enable-user-link-capturing-pwa is set to "Enabled". Default web browser set to Chrome.

1. Install and open "PWA Launch Handler Test" PWA window at http://localhost:8080/.
2. Open the 3-dots menu in the upper-right corner and click "Open in Chrome".
3. Click the button to call window.open('index3.html', 'namedpopupwindow', 'popup');.

❌ index3.html opens in a new PWA window with message "window.name: , has window.opener: false".

Expected behavior: index3.html should open in a popup window with message "window.name: namedpopupwindow, has window.opener: true" (scenario 3).