Autoprefixer blocks every other feature

[designorant]

I'm not sure whether it's related to #6 (likely not as I've tested it with the config provided in the README) or whether it was a bug in the pleeease used in grunt-pleeease but for some reason autoprefixer blocks the other pleeease goodies.

gruntfile.js

pleeease: {
    options: {
        autoprefixer: {
            'browsers': ['> 1%', 'Explorer >= 8'],
            'map': true
        },
        opacity: true,
        pseudoElements: true
    },
    dist: {
        files: [{
            expand: true,
            cwd: '<%= config.tmp %>/styles/',
            src: '{,*/}*.css',
            dest: '<%= config.tmp %>/styles/'
        }]
    }
}

style.scss

a::before {
    opacity: 0.5;
    transition: all .15s ease-out;
}

Result:

a::before {
    opacity: 0.5;
    -webkit-transition: all .15s ease-out;
            transition: all .15s ease-out;
}

Expected result:

a:before {
    opacity: 0.5;
    filter: alpha(opacity=50);
    -webkit-transition: all .15s ease-out;
            transition: all .15s ease-out;
}

Result without autoprefixer

a:before {
    opacity: 0.5;
    filter: alpha(opacity=50);
    transition: all .15s ease-out;
}

[iamvdo]

It's actually a bug in Pleeease 2, fixed in Pleeease 3. This module has to be updated to use the latest version.

As a side note, the browsers key in autoprefixer automatically enables or disables other options, based on the caniuse database. So you don't need to add opacity: true nor pseudoElements: true because they are enabled as you ask for ie8 support. :)
You can try in http://pleeease.io/play by copy/pasting > 1%, Explorer >= 8 in Autoprefixer's field and enable/disable opacity, this will produce no effect.

[designorant]

Yes, I meant pleeeeaee, not postcss.

Thanks for the tip! Great stuff!