Cannot add project to host: Access-Control-Allow-Origin
windj007 opened this issue · comments
Hi!
Do not know, where to ask about FGLab, so asking here...
I deployed FGLab with two FGMachine instances via Docker on two separate nodes (one running lab+machine, second - only machine). I created a sample project scheme and uploaded it to the FGLab WUI.
Then, when I'm trying to add the project to a machine, the page throws an alert with message 'undefined'. In console, there is a message about cross-site scripting security. Please find the screenshot attached.
Any ideas, where to look and what to do?
Best regards,
Roman.
The error is being triggered because something is going wrong with the CORS setup here - which reads in FGLAB_URL and should allow access from it. The fact that you're getting "home" (127.0.0.1) is strange. Could you post more details on the setup, including representative (fake) values for FGLAB_URL and FGMACHINE_URL?
The setup was as follows:
- node1 - fglab (docker), fgmachine (docker). FGLab listens to localhost:5080 these two containers are not linked together, but fgmachine references to fglab via http://localhost:5080
- node2 - ssh tunnel to node1 which exposes 5080 to localhost of node2 and fgmachine in docker, which references to fglab also via localhost:5080.
I was running the browser on my workstation, also via ssh tunnel. The idea was to protect installation (the servers are accessible from the WEB). Then, I realized that such a scheme cannot work due to direct requests from browser to machines. Now, I pointed fgmachine to public address node1:5080 and added iptables rules for protection.
So, this particular issue seems to be resolved.
As you've identified, everything needs access to each other. If you're working with Docker, it should be possible to do multi-host networking (but I have no experience with this).