Merlin
postMessageObserver

postMessageObserver

A Chrome extension that allows you to observe the flow of postMessage messages on the side panel.

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Merlin
Stats
Users: 12 ▼ -1
Version: 1.0.0 (Last updated: 2023-10-23)
Creation date: 2023-10-23
Risk impact: Moderate risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 3
Permissions:
  • scripting
  • activeTab
  • sidePanel
Host permissions:
  • https://*/*
Size: 127.91K
URLs: Website
Stats date:

Chrome-Stats Rank

# 15927 ▼ 312
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Other platforms

Not available on Chrome
Not available on Firefox
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Merlin
Summary
Analyze keywords

Chrome PostMessage Observer provides a convenient side panel to view postMessages for the current page. This extension offers a user-friendly UI that simplifies the debugging and observation of message flows between iframes and the top window. Easily intercept and analyze postMessage messages, view their payload, source, and target details, and efficiently troubleshoot communication issues within web applications.

Contributions are welcome to the GitHub project, which can be found here: https://github.com/yishiashia/chrome-postmessage-observer

Safety
Risk impact

postMessageObserver may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.

Risk likelihood

postMessageObserver is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

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Screenshots
postMessageObserver