{"action":"created","issue":{"url":"https://api.github.com/repos/Financial-Times/polyfill-service/issues/422","labels_url":"https://api.github.com/repos/Financial-Times/polyfill-service/issues/422/labels{/name}","comments_url":"https://api.github.com/repos/Financial-Times/polyfill-service/issues/422/comments","events_url":"https://api.github.com/repos/Financial-Times/polyfill-service/issues/422/events","html_url":"https://github.com/Financial-Times/polyfill-service/issues/422","id":93182263,"number":422,"title":"Promise polyfill throws \"Can't find variable: _enqueueMicrotask\" error","user":{"login":"zarjay","id":679049,"avatar_url":"https://avatars.githubusercontent.com/u/679049?v=3","gravatar_id":"","url":"https://api.github.com/users/zarjay","html_url":"https://github.com/zarjay","followers_url":"https://api.github.com/users/zarjay/followers","following_url":"https://api.github.com/users/zarjay/following{/other_user}","gists_url":"https://api.github.com/users/zarjay/gists{/gist_id}","starred_url":"https://api.github.com/users/zarjay/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/zarjay/subscriptions","organizations_url":"https://api.github.com/users/zarjay/orgs","repos_url":"https://api.github.com/users/zarjay/repos","events_url":"https://api.github.com/users/zarjay/events{/privacy}","received_events_url":"https://api.github.com/users/zarjay/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":{"url":"https://api.github.com/repos/Financial-Times/polyfill-service/milestones/6","html_url":"https://github.com/Financial-Times/polyfill-service/milestones/1.5","labels_url":"https://api.github.com/repos/Financial-Times/polyfill-service/milestones/6/labels","id":1087260,"number":6,"title":"1.5","description":"","creator":{"login":"triblondon","id":1735391,"avatar_url":"https://avatars.githubusercontent.com/u/1735391?v=3","gravatar_id":"","url":"https://api.github.com/users/triblondon","html_url":"https://github.com/triblondon","followers_url":"https://api.github.com/users/triblondon/followers","following_url":"https://api.github.com/users/triblondon/following{/other_user}","gists_url":"https://api.github.com/users/triblondon/gists{/gist_id}","starred_url":"https://api.github.com/users/triblondon/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/triblondon/subscriptions","organizations_url":"https://api.github.com/users/triblondon/orgs","repos_url":"https://api.github.com/users/triblondon/repos","events_url":"https://api.github.com/users/triblondon/events{/privacy}","received_events_url":"https://api.github.com/users/triblondon/received_events","type":"User","site_admin":false},"open_issues":0,"closed_issues":22,"state":"open","created_at":"2015-04-28T11:33:44Z","updated_at":"2015-07-06T22:30:09Z","due_on":null,"closed_at":null},"comments":3,"created_at":"2015-07-06T04:05:30Z","updated_at":"2015-07-06T22:31:45Z","closed_at":"2015-07-06T22:30:00Z","body":"I get this error when I load the Promise polyfill in IE10 or iOS7 Safari:\r\n\r\n```\r\nReferenceError: Can't find variable: _enqueueMicrotask\r\n```\r\n\r\nHere's the URL I used: http://cdn.polyfill.io/v1/polyfill.min.js?features=default,Promise&gated=1"},"comment":{"url":"https://api.github.com/repos/Financial-Times/polyfill-service/issues/comments/119016708","html_url":"https://github.com/Financial-Times/polyfill-service/issues/422#issuecomment-119016708","issue_url":"https://api.github.com/repos/Financial-Times/polyfill-service/issues/422","id":119016708,"user":{"login":"triblondon","id":1735391,"avatar_url":"https://avatars.githubusercontent.com/u/1735391?v=3","gravatar_id":"","url":"https://api.github.com/users/triblondon","html_url":"https://github.com/triblondon","followers_url":"https://api.github.com/users/triblondon/followers","following_url":"https://api.github.com/users/triblondon/following{/other_user}","gists_url":"https://api.github.com/users/triblondon/gists{/gist_id}","starred_url":"https://api.github.com/users/triblondon/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/triblondon/subscriptions","organizations_url":"https://api.github.com/users/triblondon/orgs","repos_url":"https://api.github.com/users/triblondon/repos","events_url":"https://api.github.com/users/triblondon/events{/privacy}","received_events_url":"https://api.github.com/users/triblondon/received_events","type":"User","site_admin":false},"created_at":"2015-07-06T22:31:45Z","updated_at":"2015-07-06T22:31:45Z","body":"Ah, easy fix - it looks like one of our 'private polyfills' (essentially functions that we share between polyfills but which do not emulate native features) did not list every browser in its config correctly.  Private polyfills must list every browser because by definition no browser has the feature.\r\n\r\nWill be released in 1.5."}}