addRootSlash: false is ineffective when used with ignorePath

[dman777]

        injector: {
            options: {
            destFile : 'app/static/index.html',
            addRootSlash: false,
            ignorePath: 'app/static'
            }, 
                files: {
                    expand: true,
                    cwd: 'app/static/css',
                    src: ['*.css'],
                    dest: '../',
                    ext: '.css'
                    }
        }, 

There will be a root slash prefix when there should not be

[dman777]

However, this can be overcome with ignorePath: 'app/static/'....note the trailing slash