This extension prints messages sent with postMessage to the console

Latest Version

Version
0.2.0
Update
November 27, 2018
Size
3.61KiB
Developer
Category
Users
4,000+
Rating
4.58333 ★
Manifest Version
2
Web Store Status
Languages Support
English
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Permissions
See more

Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 2, "name": "postMessage debugger", "description": "This extension prints messages sent with postMessage to the console", "version": "0.2.0", "browser_action": { "name": "Debug postMessages" }, "content_scripts": [ { "js": ["js/postMessage-debugger.js"], "matches": ["http://*/*", "https://*/*"], "all_frames": true } ]}
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User reviews

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Валентин Ткачев (ID: 000000e31b008580) Voted 5 ★ - Updated 11/12/2023 Thank you, very convenient for development process.

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E. Donker (ID: 000000ee7820ae39) Voted 5 ★ - Updated 01/30/2023 This extension is great! Use it a lot.

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Matt P (ID: 000000acd7fead05) Voted 5 ★ - Updated 01/20/2023 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.

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Elías Daniel Araya Díaz (ID: 00000079f33f55cc) Voted 1 ★ - Updated 12/26/2022 This is not working at all 👎

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John Horner (ID: 00000081783bed28) Voted 4 ★ - Updated 04/20/2021 Very useful extension, but the thing about selecting 'verbose' in the Console's 'levels' box ought to be more prominent! It should be in the description of the Extension: "This extension prints messages sent with postMessage to the console (turn on Verbose levels to see them)"