Welcome to Node-Red dashboard page

[dr_cave_dweller]

Hello, I have a small touchscreen running Node-Red, it is connected to another main controller running Node-Red. The touchscreen is just mirroring the Dashboard by logging into the IP address. Occasionally the main controller is powered down and back up, which results in touchscreen displaying this message that it is waiting for Node-Red

My question is - where can I find the text and image displayed here so I can modify what it says? I just want it to show a blank screen with connection lost in top right. Thanks

[Trying_to_learn]

I'm not 100% sure I understand.

To check:
NR is running on machine 1
This touch screen is on machine 2

But as a thought:
What happens if you use another machine to look at the dashboard of machine 1?
(Say from machine 3)
If that shows the correct thing, good.

Exit full screen mode(on machine 2) and try pressing the refresh button on the browser.

[dr_cave_dweller]

Node-Red running on both machines
Machine 1 - The main controller does everything, but has no screen. It is running the dashboard
Machine 2 - Does nothing but open a chromium browser, connect to IP address of Machine 1. It is just showing a mirror of the dashboard

Problem - When Machine 1 turns off, Machine 2 is still running. It gets the above page. I dont mind the page. I just want to remove the text. This situation only last for as long as Machine 1 is off. When Machine 1 restarts then Machine 2 will redisplay the Machine 1 dashboard.

[Trying_to_learn]

If machine 1 is TURNED OFF then it is sort of understandable that machine 2 can't see the dashboard.

That it is showing the please make a flow is sort of worrying - if I am reading it right, as machine 1 is turned OFF!

Yes when machine 1 is turned back on the dashboard loads.

Ok, moving on:
On machine 2 can you take the browser out of full screen mode so the URL is visible?

Can you also share machine 1 and machine 2 IP addresses?

[dr_cave_dweller]

Like this. The bash script that starts Chromium and points to the Machine 1 IP address is started through Node-Red on Machine 2.

Again, I dont mind at all that this comes up, I just want to know how to remove the text in the middle of the screen

[Trying_to_learn]

Thanks.

Now a picture of machine 2's screen showing the IP address when it is showing the text shown in the other picture.

[dr_cave_dweller]

It shows the same same IP address 10.0.0.80:1880/dashboard

It is the same screen I get if I log into the IP address through my laptop and Machine 1 goes down

[Trying_to_learn]

If you see that with machine 1 turned off:

It is beyond me.

Sorry, can't help.

[dr_cave_dweller]

That makes two of us!

[Trying_to_learn]

The only thing I can think of is cache, but even that doesn't make sense either.

[jbudd]

@dr_cave_dweller

It shows the same same IP address 10.0.0.80:1880/dashboard

This is @flowfuse/node-red-dashboard, ie dashboard 2?

[dceejay]

It comes from here node-red-dashboard/src/index.html at 547e31efa91e230124b533f30f2076d1bb158066 · node-red/node-red-dashboard · GitHub in the source - but that get compiled into the runtime version here
node-red-dashboard/dist/index.html at 547e31efa91e230124b533f30f2076d1bb158066 · node-red/node-red-dashboard · GitHub

[dr_cave_dweller]

Ok, that seems to have escalated quickly past my competence level, I dont think I want to do custom builds of Node-Red. Thanks for answering though.

[Trying_to_learn]

Don't worry too much if you don't understand what is happening.

It is most of my life for me in that scenario.

But to digress back to the original part:

Why is machine 1 turned off and on so often?

As it is the sensor (to call it) it should be on all/most of the time any way and more like machine 2 is turned on/off more frequently.

[dr_cave_dweller]

Doesn't happen often, just looking at fringe cases

[Trying_to_learn]

Ok, sorry.

Just in the bigger picture of how you asked the original question.

All good,

[TotallyInformation]

In general, all you need to know is that the front-end (e.g. browser client) code for Dashboard is "intelligent" enough to tell you it can't actually get anything useful from the server. Perhaps the wording could be a bit more friendly.

I think you are using D2 so you may want to try raising an enhancement request for D2 here in the forum?

[dceejay]

don't worry - it's still "just" a text file so you can hand edit it - it's just all on one line so a bit more of a pain to do... on my PC the .node-red/node_modules/node-red-dashboard/dist/index.html ends a bit like

& !main.nothing" ng-include="'loading.html'" class="node-red-ui--loading"></div> <div ng-if="main.nothing" class="node-red-ui--notabs"> <table><tr><td><center><img src="icon120x120.png"></center></td></tr> <tr><td><center><h2>Welcome to the Node-RED Dashboard</h2></center></td></tr> <tr><td><center>Please add some UI nodes to your flow and redeploy.</center></td></tr></table> </div> <script src="socket.io/socket.io.js"></script> <script src="js/app.min.js"></script> <script src="i18n.js"></script> </body> </html>

So you can see in there the text you need to remove. In fact you can remove or replace from <table> to </table> if you like no problem..... Do note however if you do this by hand then you will need to redo this next time you update the node-red-dashboard set of nodes, as the update will overwrite this file again.