postMessage debugger

This extension prints messages sent with postMessage to the console

What is postMessage debugger?

"postMessage debugger" is a Chrome extension developed to assist in the debugging process by capturing and printing messages that are sent using the postMessage function to the console. This tool aids developers in tracking message exchanges in the development environment for problem-solving and code verification.

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Extension stats

By: wille.eklund

View on Chrome Web Store

Users: 4,000+

Rating: 4.58 (12)

Version: 0.2.0 (Last updated: 2018-11-28)

Creation date: 2018-11-23

Risk impact: Low risk impact

Risk likelihood: Low risk likelihood

Manifest version: 2

Size: 3.70K

Ranking

# 15079 ▲ 1

Other rankings

#6776 in Developer Tools ▼ 11 #39 in debug keyword 18

Other platforms

Not available on Firefox

Not available on Edge

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Extension summary

Analyze keywords

This chrome extension prints messages sent with postMessage to the console for debugging.

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.

Pros

Very convenient for the development process.
Useful for debugging postMessage functionality.
Logs events sent to iframes as well as those received by the top frame.
Works as advertised and does what is needed.
Saves time for developers.

Cons

Some users reported it not working at all.
Difficulties in toggling off logging without disabling the entire extension.
Need for more information in the MessageEvent logs (e.g., origin, source).
Verbose log setting is not prominently mentioned in the description.

Most mentioned

Check 'Verbose' in Console tab's top bar 'Default levels' to see logs.
Works as expected and logs events.

Recent reviews

Thank you, very convenient for development process.

Валентин Ткачев, 2023-11-12

This extension is great! Use it a lot.

E. Donker, 2023-01-30

I was pleasantly surprised that this reports messages sent to iframes as well as messages received by the top frame as well. As others said, if you don't see anything in the devtools console, you probably need to pull out the sidebar to look at the verbose/debug log level. A good example case is the youtube embed API (you can find examples on codepen). It would be very helpful if this logged a bit more information about each MessageEvent rather than just the data...like the origin, source, ports and lastEventId. Currently it seems to log the window title, but perhaps the window url or origin would be more useful.