# Debug window does not work, but does work through console

**URL:** <https://discourse.nodered.org/t/debug-window-does-not-work-but-does-work-through-console/99285>\
**Category:** General\
**Tags:** debug\
**Created:** [7 October 2025 08:30 UTC](https://discourse.nodered.org/t/debug-window-does-not-work-but-does-work-through-console/99285 "2025-10-07T08:30:37Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![Ryan](https://avatars.discourse-cdn.com/v4/letter/r/a8b319/32.png) [@Ryan](https://discourse.nodered.org/u/Ryan)\
**Post date:** [7 October 2025 08:30 UTC](https://discourse.nodered.org/t/debug-window-does-not-work-but-does-work-through-console/99285/1 "2025-10-07T08:30:37Z")

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Hi, I have been using node red for little over a week with no issues regarding the debug window. But since yesterday, basicly out of nowhere (I believe after a regular reboot), no messages pop up in the debug window at all. When I set the debug node to output to the system console, I do receive the messages in the console at full, without errors or issues. Also, the flow functions fully like before.

**My setup:**  
Raspberry pi 5 which runs raspberry OS with node red (standard port 1880)  
Laptop too control/setup node red connected through chrome -\> wifi (local connection)

**What have I tried:**

- Ofcourse some basics: debug node is active (and working through system console) and the debug window is open (just blank)
- Disable all external nodes and go back to basic inject -\> debug
- look at every potential forum to find a solution: no luck...
- Open console on raspberry through localhost -\> same problem
- Clear cache of browser (chrome)
- Find errors on startup in the console -\> no errors (such as websocket)
- Find errors in web console; i got some errors but I am not sure if this has any connection with the debug window:

1. Uncaught (in promise) Error: A listener indicated an asynchronous response by returning true, but the message channel closed before a response was received (I am pretty sure that this is from the node which imports sensordata to node-red)
2. Uncaught (in promise) Canceled: Canceled  
at g.cancel (editor.js:2:597062)  
at g.dispose (editor.js:2:597176)  
at h (editor.js:2:711061)  
at p.clear (editor.js:2:711703)  
at p.dispose (editor.js:2:711613)  
at B.dispose (editor.js:2:3533212)  
at p.value (editor.js:2:3533686)  
at m.\_deliver (editor.js:2:664165)  
at m.\_deliverQueue (editor.js:2:664271)  
at m.fire (editor.js:2:664606)

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/8/a/8a4cc5accda7777b266d4a585b2ef45359368154.png)  
 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/f/8/f8d92ee961e191a27418d866280b51123de1546c.png)

Is there someone who has an idea how to fix this? It could be something stupid which I missed, I am by no means an expert. Please let me know if some additional information is required. Thanks in advance!

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**Author:** ![Trying\_to\_learn](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/trying_to_learn/32/28400_2.png) [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Post date:** [7 October 2025 08:48 UTC](https://discourse.nodered.org/t/debug-window-does-not-work-but-does-work-through-console/99285/2 "2025-10-07T08:48:12Z")

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Hi and welcome to the forum.

You are limited to how many posts you can do at the start until you get _Allowed_ to do more.

Anyway:  
Open the `debug` node and make sure the `complete message object` is selected and not the default one.

Then DEPLOY and try again.

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**Author:** ![jbudd](https://avatars.discourse-cdn.com/v4/letter/j/5f8ce5/32.png) [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Post date:** [7 October 2025 08:52 UTC](https://discourse.nodered.org/t/debug-window-does-not-work-but-does-work-through-console/99285/3 "2025-10-07T08:52:00Z")

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Welcome to the forum @Ryan 😀

If you tick all three outputs for the debug node do you see the payload under the node itself?

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/b/2/b265de5d915d6d9b0383a0e742e7ca0df4358ce1.png)

Have you made any changes to settings.js?  
What does `node-red --version` in a terminal on the Pi return?

If the problem persists after a Node-red restart or rebooting the Pi it would be a good idea to reinstall Node-red using the standard Pi install script.

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<div class="post-metadata">

**Author:** ![Ryan](https://avatars.discourse-cdn.com/v4/letter/r/a8b319/32.png) [@Ryan](https://discourse.nodered.org/u/Ryan)\
**Post date:** [7 October 2025 09:01 UTC](https://discourse.nodered.org/t/debug-window-does-not-work-but-does-work-through-console/99285/4 "2025-10-07T09:01:19Z")

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Thanks for the quick reply!  
No I cannot see the payload under the node when I tick all three outputs. Below i have added a screenshot of the settings of the debug node.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/1/2/12f79b1c307e2b59c351133061688427f855e12d.png)

The versions are:  
Node-RED v4.1.0  
Node.js v20.19.5  
Linux 6.12.47+rpt-rpi-2712 arm64 LE

Indeed, I have restarted node-red, the raspberry and laptop multiple times. I also tried to launch node-red in safe mode with no results.

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<div class="post-metadata">

**Author:** ![Trying\_to\_learn](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/trying_to_learn/32/28400_2.png) [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Post date:** [7 October 2025 09:05 UTC](https://discourse.nodered.org/t/debug-window-does-not-work-but-does-work-through-console/99285/5 "2025-10-07T09:05:27Z")

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(Don't take this personally)

Indulge me and now open the `inject` node and post a screen shot.

Just - sometimes - it is something you dismiss and until you can 100% prove it isn't that, better to be sure.

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**Author:** ![Ryan](https://avatars.discourse-cdn.com/v4/letter/r/a8b319/32.png) [@Ryan](https://discourse.nodered.org/u/Ryan)\
**Post date:** [7 October 2025 09:17 UTC](https://discourse.nodered.org/t/debug-window-does-not-work-but-does-work-through-console/99285/6 "2025-10-07T09:17:57Z")

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Yeah, that is not the issue. Initially, I have used a lot of different sources and debug nodes which all have the same problem. I am pretty sure it is a node red problem and not a flow/node problem. Underneath you can find the settings of the inject node.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/f/5/f509dc91497483437977ef2eda5ae2f3bbbdc21e.png)

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<div class="post-metadata">

**Author:** ![Trying\_to\_learn](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/trying_to_learn/32/28400_2.png) [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Post date:** [7 October 2025 09:27 UTC](https://discourse.nodered.org/t/debug-window-does-not-work-but-does-work-through-console/99285/7 "2025-10-07T09:27:16Z")

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Yeah, sorry. Just **I** have been in similar situations..

I'd say @jbudd's suggestion is the best way to go.

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<div class="post-metadata">

**Author:** ![Ryan](https://avatars.discourse-cdn.com/v4/letter/r/a8b319/32.png) [@Ryan](https://discourse.nodered.org/u/Ryan)\
**Post date:** [7 October 2025 09:32 UTC](https://discourse.nodered.org/t/debug-window-does-not-work-but-does-work-through-console/99285/8 "2025-10-07T09:32:28Z")

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Update,  
For whatever reason, the debug window decided to just start working again after two days of trial and error out of nowhere while I was monitoring the chrome console... I am extremely confused right now. I will continue to monitor the situation and supply you with an update in a couple of days regarding the status.

Thanks to the both of you for your time and effort!

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [21 October 2025 09:33 UTC](https://discourse.nodered.org/t/debug-window-does-not-work-but-does-work-through-console/99285/9 "2025-10-21T09:33:23Z")

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