{"action":"created","issue":{"url":"https://api.github.com/repos/angular/zone.js/issues/1110","repository_url":"https://api.github.com/repos/angular/zone.js","labels_url":"https://api.github.com/repos/angular/zone.js/issues/1110/labels{/name}","comments_url":"https://api.github.com/repos/angular/zone.js/issues/1110/comments","events_url":"https://api.github.com/repos/angular/zone.js/issues/1110/events","html_url":"https://github.com/angular/zone.js/issues/1110","id":340024505,"node_id":"MDU6SXNzdWUzNDAwMjQ1MDU=","number":1110,"title":"makeAddListener breaks when the Event Name is a Symbol","user":{"login":"jreidgreer","id":4984283,"node_id":"MDQ6VXNlcjQ5ODQyODM=","avatar_url":"https://avatars1.githubusercontent.com/u/4984283?v=4","gravatar_id":"","url":"https://api.github.com/users/jreidgreer","html_url":"https://github.com/jreidgreer","followers_url":"https://api.github.com/users/jreidgreer/followers","following_url":"https://api.github.com/users/jreidgreer/following{/other_user}","gists_url":"https://api.github.com/users/jreidgreer/gists{/gist_id}","starred_url":"https://api.github.com/users/jreidgreer/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jreidgreer/subscriptions","organizations_url":"https://api.github.com/users/jreidgreer/orgs","repos_url":"https://api.github.com/users/jreidgreer/repos","events_url":"https://api.github.com/users/jreidgreer/events{/privacy}","received_events_url":"https://api.github.com/users/jreidgreer/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":7,"created_at":"2018-07-10T22:09:16Z","updated_at":"2018-11-18T02:09:17Z","closed_at":null,"author_association":"NONE","body":"When Zone.js is running in Node, it appears to be wrapping Node's EventEmitter methods, causing issues when the `eventName` is a Symbol. Node's [documentation states that `eventName` can be a string or a symbol.](https://nodejs.org/api/events.html#events_emitter_on_eventname_listener)\r\n\r\nHowever, Zone tries to coerce `eventName` into a string:\r\n\r\nhttps://github.com/angular/zone.js/blob/e9536ec7d724e21473496c090378d6635944c798/lib/common/events.ts#L383\r\n\r\nThis causes an error:\r\n\r\n```\r\nTypeError: Cannot convert a Symbol value to a string\r\n    at Unpack.<anonymous> (zone.js/dist/zone-node.js:1688:52)\r\n    at new Parser (/gulp-custom-plugin/node_modules/custom-module/node_modules/tar/lib/parse.js:70:12)\r\n    at new <anonymous> (/gulp-custom-plugin/node_modules/custom-module/node_modules/tar/lib/warn-mixin.js:2:26)\r\n    at new Unpack (/gulp-custom-plugin/node_modules/custom-module/node_modules/tar/lib/unpack.js:52:5)\r\n    at extract (/gulp-custom-plugin/node_modules/custom-module/node_modules/tar/lib/extract.js:111:10)\r\n    at Object.module.exports (/gulp-custom-plugin/node_modules/custom-module/node_modules/tar/lib/extract.js:38:7)\r\n    at extractStream (/gulp-custom-plugin/node_modules/custom-module/node_modules/pacote/lib/extract-stream.js:39:1\r\n```\r\n\r\nThis is causing an issue in the `node-tar` library, [for instance](https://github.com/npm/node-tar/issues/189)."},"comment":{"url":"https://api.github.com/repos/angular/zone.js/issues/comments/439661985","html_url":"https://github.com/angular/zone.js/issues/1110#issuecomment-439661985","issue_url":"https://api.github.com/repos/angular/zone.js/issues/1110","id":439661985,"node_id":"MDEyOklzc3VlQ29tbWVudDQzOTY2MTk4NQ==","user":{"login":"alamothe","id":2679255,"node_id":"MDQ6VXNlcjI2NzkyNTU=","avatar_url":"https://avatars1.githubusercontent.com/u/2679255?v=4","gravatar_id":"","url":"https://api.github.com/users/alamothe","html_url":"https://github.com/alamothe","followers_url":"https://api.github.com/users/alamothe/followers","following_url":"https://api.github.com/users/alamothe/following{/other_user}","gists_url":"https://api.github.com/users/alamothe/gists{/gist_id}","starred_url":"https://api.github.com/users/alamothe/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/alamothe/subscriptions","organizations_url":"https://api.github.com/users/alamothe/orgs","repos_url":"https://api.github.com/users/alamothe/repos","events_url":"https://api.github.com/users/alamothe/events{/privacy}","received_events_url":"https://api.github.com/users/alamothe/received_events","type":"User","site_admin":false},"created_at":"2018-11-18T02:09:17Z","updated_at":"2018-11-18T02:09:17Z","author_association":"NONE","body":"No worries, in my case I'm fine with `puppeteer` 1.8 for now and will wait for the next release. Thanks!"}}
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