{"action":"opened","issue":{"url":"https://api.github.com/repos/ancestorak/brief/issues/151","labels_url":"https://api.github.com/repos/ancestorak/brief/issues/151/labels{/name}","comments_url":"https://api.github.com/repos/ancestorak/brief/issues/151/comments","events_url":"https://api.github.com/repos/ancestorak/brief/issues/151/events","html_url":"https://github.com/ancestorak/brief/issues/151","id":99156834,"number":151,"title":"\"TypeError: calling a builtin Map constructor without new is forbidden\"","user":{"login":"simonlindholm","id":371089,"avatar_url":"https://avatars.githubusercontent.com/u/371089?v=3","gravatar_id":"","url":"https://api.github.com/users/simonlindholm","html_url":"https://github.com/simonlindholm","followers_url":"https://api.github.com/users/simonlindholm/followers","following_url":"https://api.github.com/users/simonlindholm/following{/other_user}","gists_url":"https://api.github.com/users/simonlindholm/gists{/gist_id}","starred_url":"https://api.github.com/users/simonlindholm/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/simonlindholm/subscriptions","organizations_url":"https://api.github.com/users/simonlindholm/orgs","repos_url":"https://api.github.com/users/simonlindholm/repos","events_url":"https://api.github.com/users/simonlindholm/events{/privacy}","received_events_url":"https://api.github.com/users/simonlindholm/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-08-05T08:57:56Z","updated_at":"2015-08-05T08:57:56Z","closed_at":null,"body":"I saw Storage.jsm:1698, i.e., this line:\r\n```javascript\r\n let storedFeedsByID = Map(storedFeeds.map(feed => [feed.feedID, feed]));\r\n```\r\nin LivemarksSync throw an exception \"TypeError: calling a builtin Map constructor without new is forbidden\". Seems to be new in Firefox 42, i.e. current Nightly: https://bugzilla.mozilla.org/show_bug.cgi?id=1083752\r\n\r\nI didn't confirm, but this might be causing feed syncing to fail."}}