Long story short, I installed both of the aforementioned programs on my Raspberry Pi but, in doing so, I was able to navigate to only ownCloud. After doing some digging around the internets, I found the solution.
As smithg400 on Raspberry Pi’s forums pointed-out, both WebIDE and ownCloud listen for connections on port 80 of their local networks, and that the solution is to change one of them; in this case, the default port for WebIDE.
To do that, open a Terminal window and navigate to the config directory of the WebIDE installation folder by typing
sudo nano config.js
You’ll find that the file looks something like this:
You want to change the port number to something else. In this case, I changed it from “80” to “8080”, like this:
CTRL + X
to exit, then type
to accept the changes. Now open a browser and log-in like you normally would to WebIDE. Just type in your RPi’s address followed by the port, like this: 192.168.xx.xx:8080