Proxy port 1880 behind Apache

General
1

I need to proxy the Node-RED console (http://host_name:1880) behind Apache. The page comes down fine, but all of the resources required by the page fail with:
Status Code: 502 Proxy error -
Remote Address: (Apache IP)
Referrer Policy: strict-origin-when-cross-origin

I checked high and low on Google, but I haven't been able to find anything. Do anyone have any suggestions?

TIA

2

THere are various reasons you might get a 502 but the most likely in the case of Node-RED is that the translated request no longer makes sense to Node-RED and so the proxy gets the equivalent of shrugged shoulders.

Check the Apache logs for errors coming back from Node-RED.

You haven't told us what resources you are asking for nor what kind of page you are requesting so it is hard to give more specifics. Node-RED has many options for serving up web resources: the static folder, built-in admin resources, all of the dashboard resources, http-in/-out resources, uibuilder resources, etc.

3

The homepage is what won't load, just the default http://host_name:1880. The HTML comes down, but it errors on the resources required for the HTML.

The 502 is on:

  • jquery-ui.min.css
  • font-awesome.min.css
  • style.min.css
  • vendor.js
  • red.min.js
  • main.min.js
  • favicon.ico

All I saw in the Apache logs before were the 502 errors, but I'll check again to make sure.

4

You might want to share the relevant part of your Apache config (though not sure I can remember how it should look now, not used Apache for a long time).

I assume that Node-RED and Apache are on the same device?

5

I found it, it was operator error. :blush:

I added a trailing slash to my ProxyPass directive, and voila! Originally it ended with the port#.

ProxyPass /node-red/ http://127.0.0.1:1880/

@TotallyInformation are you shooting a bow in your avatar? Cool, small world.

Thanks for the help

1 Like
6

Yes, I went through a an archery phase. I'd love to still do it but there wasn't a nearby club. Found it incredibly relaxing. Something to do with the focus required I think.

That particular day was a notable day out in Sherwood Forrest. My son dressed in his Robin Hood outfit. They had some people allowing longbow demo's and you could have a go. Good fun.

7

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