I am developing a complex modular Flex application where the loader and all the modules use robotlegs. With v1.0.3 and suspenders 1.0.1 there was no problem but when updating to 1.1.1 with suspenders 1.5.1 the modules could not find the mapped definitions.
I figured it's because the injector tried with the main domain so I tried to pass the current domain and I overridden the get injector in the module context with this:

override protected function get injector():IInjector
{

if(!_injector){
    var swiftInjector:SwiftSuspendersInjector = new SwiftSuspendersInjector()
    swiftInjector.setApplicationDomain(ApplicationDomain.currentDomain)
    _injector = swiftInjector
}
return _injector

}

It was still not working because when the SwiftSuspendersInjector created a child it doesn't care about the parent's defined domain it just uses the parameter so If i want to pass the domain I have to override all places where the injector creates a child and pass my domain. Because I used the sources I just modified the SwiftSuspendersInjector to save me some trouble

public function createChild(applicationDomain:ApplicationDomain = null):IInjector
{

var injector:SwiftSuspendersInjector = new SwiftSuspendersInjector();
if(applicationDomain){
    injector.setApplicationDomain(applicationDomain);
}else{
    injector.setApplicationDomain(getApplicationDomain())
}
injector.setParentInjector(this);
return injector;

}

So now if there is no domain in the parameter it uses the parents domain. Maybe there is a better way because it would sure be nice if one existed or maybe there is a reason for doing it like this.