I want to give my 2 cents on this!
If you are loading your instance in port 80, you should've probably added the iptable record in your system. Then you've tried to print an invoice and everything is screwed. Ok!
Because you've changed the URL we need to say Odoo where are the assets now and because the project doesn't know anything about the iptable record you need to specify where the assets (css) are, so adding the following record to your system global parameters will solve the issue.
Go to debug mode, either by adding the `?debug` parameter at the end of the URL or clicking in the profile at the top right and then on About. You'll see a popup with a button that says `Activate debug mode`. If you don't see it, you're not logged in as Administrator!
Go to Settings > Parameters > System Parameters
Add the following key/value:
Key: `report.url`
Value: `http://localhost:8069`
Those exact values! localhost is not a placeholder, use that exact same URL!
Try to print an invoice ;)
You're welcome!
Hi, I want to reproduce the problem. When export and dialog save file opened. Don't immediately save the file, but check the server in /tmp. There should be some report*.html files. Can you share the files?
Ups, I was wrong, sorry.