gistfile1.txt

- (id)init {
    self = [super initWithWindowNibName:@"FAMainApp"];

    if (self) {
        bridge = [[FAMainAppJSBridge alloc] initWithApp:self];
        …
    }

    return self;
}

- (void)windowDidLoad {
    [super windowDidLoad];

    …

    // Attach obj-c <-> js bridge
    id win = [self.web windowScriptObject];
    [win setValue:bridge forKey:@"osx"];

    …
}