[Solved] Dev instance with nginx: topic preview not working

dev
1

When clicking “New Topic” in my dev instance, I get the following errors in the console and the preview pane doesn’t work:

Uncaught SyntaxError: Unexpected token <										markdown-it-bundle.js:1
Error: Could not find module pretty-text/engines/discourse-markdown/helpers		discourse/lib/text:40 
    at missingModule (discourse-loader:134)
    at require (discourse-loader:149)
    at setup (pretty-text/engines/discourse-markdown-it:242)
    at buildOptions (pretty-text/pretty-text:100)
    at getOpts (discourse/lib/text:25)
    at cook (discourse/lib/text:30)
    at eval (discourse/lib/text:38)
    at tryCatch (ember:50180)
    at invokeCallback (ember:50195)
    at publish (ember:50163)

The second error then occurs each time I input a character in the text area.

I believe this problem was not occurring a few months back, but I’m not sure. I’m currently using v1.9.0.beta5 +90.

2

Because I run my dev instance behind a nginx reverse proxy, I’ve tried the solution proposed by @mr8 in here:

https://meta.discourse.org/t/discourse-preview-not-working/67584/36?u=jack2

It hasn’t solve the issue, but the error has changed. I now get:

GET https://127.0.0.1:3000/assets/markdown-it-bundle.js net::ERR_CONNECTION_CLOSED   jquery:9245 
Error: error                                                                         ember:19818 
    at unwrapErrorThrown (ember:33586)
    at errorFor (ember:33568)
    at onerrorDefault (ember:33558)
    at Object.trigger (ember:49836)
    at eval (ember:50737)
    at invokeWithOnError (ember:2197)
    at Queue.flush (ember:2256)
    at DeferredActionQueues.flush (ember:2380)
    at Backburner.end (ember:2450)
    at Backburner.run (ember:2564)
Uncaught promise:  {jqXHR: {…}, textStatus: "error", errorThrown: "error"}           (index):455

Any idea?

(also, I’ve tried to switch my instance to “force https”, but it made no difference)

3

Have you tried disabling all your plugins to see if you still get the error?

Do you have your app.yml configured for https?

2 Likes
4

Thanks @mr8.

I’ve disabled all my plugins and seen no change.
I’m running a dev instance, so I believe there’s no app.yml file.

In the Chrome console, I see Discourse trying to load http://127.0.0.1:3000/assets/markdown-it-bundle.js. Of course, client-side, this url points to nothing.

This url comes from the fact that my nginx is configured like this:

server {
  ...
  server_name www.mydomain.org;
  ...
  location / {
    ...
    proxy_pass http://127.0.0.1:3000;
    ...
  }
}

i.e. http://127.0.0.1:3000/assets/markdown-it-bundle.js is an internal server-side url.

What am I missing?

5

You are missing the other proxy directives. You need all of these:

		# proxy_pass .....;
		proxy_set_header Host $http_host;
		proxy_http_version 1.1;
		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
		proxy_set_header X-Forwarded-Proto $scheme;
		#proxy_set_header Client-IP "";
3 Likes
6

I’ve never used the dev instance, but it looks like discourse thinks your domain is http://127.0.0.1:3000 and serving the assets with that ‘domain’.

7

@riking, that did it, thanks a lot. Somewhere along the line I’d commented out my X-Forwarded-For line, for whatever reason.
Thanks also for your excellent link! There’re so many Discourse+nginx pages on this forum (and on the Internet), that it’s good to have a reference one.

4 Likes