I have a secondary site in an MSM install (EE2.5.5).
In EE's File Manager, I have paths like this:
This works fine when using a File fieldtype, as I can change the domain name referenced above and file paths will all update. However, images inserted in a rich text field, i.e., WYGWAM, will be dumped in like this:
When I chance the domain name, I'll have broken links. However, if I try to refer to images with relative paths:
They don't show up in the EE control panel because it's running at site1.com/system
The only solution I've found to this is to store all the images at the primary domain and then reference them all with full paths starting with http:// Then I can fuss with the secondary domain and paths remain correct.