{"action":"opened","issue":{"url":"https://api.github.com/repos/dizballanze/django-compressor-autoprefixer/issues/2","labels_url":"https://api.github.com/repos/dizballanze/django-compressor-autoprefixer/issues/2/labels{/name}","comments_url":"https://api.github.com/repos/dizballanze/django-compressor-autoprefixer/issues/2/comments","events_url":"https://api.github.com/repos/dizballanze/django-compressor-autoprefixer/issues/2/events","html_url":"https://github.com/dizballanze/django-compressor-autoprefixer/issues/2","id":104984632,"number":2,"title":"Prefixes are not expanded","user":{"login":"paolodina","id":1157401,"avatar_url":"https://avatars.githubusercontent.com/u/1157401?v=3","gravatar_id":"","url":"https://api.github.com/users/paolodina","html_url":"https://github.com/paolodina","followers_url":"https://api.github.com/users/paolodina/followers","following_url":"https://api.github.com/users/paolodina/following{/other_user}","gists_url":"https://api.github.com/users/paolodina/gists{/gist_id}","starred_url":"https://api.github.com/users/paolodina/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/paolodina/subscriptions","organizations_url":"https://api.github.com/users/paolodina/orgs","repos_url":"https://api.github.com/users/paolodina/repos","events_url":"https://api.github.com/users/paolodina/events{/privacy}","received_events_url":"https://api.github.com/users/paolodina/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-09-04T23:08:12Z","updated_at":"2015-09-04T23:08:12Z","closed_at":null,"body":"Hello, I installed django-compressor-autoprefixer but can't get it work. The node stack should be ok, it's installed with Node 0.10.25 + es6-promise patch and postcss-cli. Then I added `django_compressor_autoprefixer.AutoprefixerFilter` to `COMPRESS_CSS_FILTERS`. Result: sass files are compiled to css, but prefixes are not expanded.\r\n\r\nI guess it's a problem with my settings.\r\n\r\n```\r\nCOMPRESS_AUTOPREFIXER_BINARY = \"/usr/local/bin/postcss --use autoprefixer\"\r\nCOMPRESS_AUTOPREFIXER_ARGS   = \"\"\r\n\r\n# also tried this and other combinations\r\nCOMPRESS_AUTOPREFIXER_BINARY = \"/usr/local/bin/postcss\"\r\nCOMPRESS_AUTOPREFIXER_ARGS   = \" --use autoprefixer\"\r\n```\r\n\r\nCan you help?"}}