{"action":"opened","issue":{"url":"https://api.github.com/repos/zenparsing/es-observable/issues/53","labels_url":"https://api.github.com/repos/zenparsing/es-observable/issues/53/labels{/name}","comments_url":"https://api.github.com/repos/zenparsing/es-observable/issues/53/comments","events_url":"https://api.github.com/repos/zenparsing/es-observable/issues/53/events","html_url":"https://github.com/zenparsing/es-observable/issues/53","id":104520459,"number":53,"title":"Polyfill minify issue","user":{"login":"jeroencranendonk-wf","id":6576568,"avatar_url":"https://avatars.githubusercontent.com/u/6576568?v=3","gravatar_id":"","url":"https://api.github.com/users/jeroencranendonk-wf","html_url":"https://github.com/jeroencranendonk-wf","followers_url":"https://api.github.com/users/jeroencranendonk-wf/followers","following_url":"https://api.github.com/users/jeroencranendonk-wf/following{/other_user}","gists_url":"https://api.github.com/users/jeroencranendonk-wf/gists{/gist_id}","starred_url":"https://api.github.com/users/jeroencranendonk-wf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jeroencranendonk-wf/subscriptions","organizations_url":"https://api.github.com/users/jeroencranendonk-wf/orgs","repos_url":"https://api.github.com/users/jeroencranendonk-wf/repos","events_url":"https://api.github.com/users/jeroencranendonk-wf/events{/privacy}","received_events_url":"https://api.github.com/users/jeroencranendonk-wf/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-09-02T16:24:43Z","updated_at":"2015-09-02T16:24:43Z","closed_at":null,"body":"I'm currently using the polyfill, and ran into a minor issue when minifying it with webpack 1.10.5, which uses UglifyJS 2.4. The parameter for the `catch` on [L324](https://github.com/zenparsing/es-observable/blob/master/src/Observable.js#L324) shadows the function parameter name `x`, which, although likely valid, confuses UglifyJS into outputting incorrect ES5 code."}}