{"action":"created","issue":{"url":"https://api.github.com/repos/Polymer/polymer/issues/4609","repository_url":"https://api.github.com/repos/Polymer/polymer","labels_url":"https://api.github.com/repos/Polymer/polymer/issues/4609/labels{/name}","comments_url":"https://api.github.com/repos/Polymer/polymer/issues/4609/comments","events_url":"https://api.github.com/repos/Polymer/polymer/issues/4609/events","html_url":"https://github.com/Polymer/polymer/issues/4609","id":229638331,"number":4609,"title":"2.0 - Observer Method not called when used in iron-list","user":{"login":"jogibear9988","id":364896,"avatar_url":"https://avatars0.githubusercontent.com/u/364896?v=3","gravatar_id":"","url":"https://api.github.com/users/jogibear9988","html_url":"https://github.com/jogibear9988","followers_url":"https://api.github.com/users/jogibear9988/followers","following_url":"https://api.github.com/users/jogibear9988/following{/other_user}","gists_url":"https://api.github.com/users/jogibear9988/gists{/gist_id}","starred_url":"https://api.github.com/users/jogibear9988/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jogibear9988/subscriptions","organizations_url":"https://api.github.com/users/jogibear9988/orgs","repos_url":"https://api.github.com/users/jogibear9988/repos","events_url":"https://api.github.com/users/jogibear9988/events{/privacy}","received_events_url":"https://api.github.com/users/jogibear9988/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2017-05-18T11:28:58Z","updated_at":"2017-05-18T11:32:48Z","closed_at":null,"body":"I've following component:\r\n\r\n       Polymer({\r\n            is: \"mcc-image\",\r\n            properties: {\r\n                imageName: { type: String, observer: '_loadimage' },\r\n                language: String,\r\n\r\nThis component is used in a iron-list like this:\r\n\r\n          <mcc-image image-name=\"[[item.Material.ImageName]]\"\r\n\r\nI've attached a breakpoint in the Method \"_loadimage\", but every time the method is hit, the value of this.imageName is undefined!\r\n\r\nIf I now select my \"mcc-image\" in chrome, and look via console $0.imageName, the image name is set, means my observer is not called.\r\n\r\nThis worked with the preview Version before!"},"comment":{"url":"https://api.github.com/repos/Polymer/polymer/issues/comments/302378341","html_url":"https://github.com/Polymer/polymer/issues/4609#issuecomment-302378341","issue_url":"https://api.github.com/repos/Polymer/polymer/issues/4609","id":302378341,"user":{"login":"jogibear9988","id":364896,"avatar_url":"https://avatars0.githubusercontent.com/u/364896?v=3","gravatar_id":"","url":"https://api.github.com/users/jogibear9988","html_url":"https://github.com/jogibear9988","followers_url":"https://api.github.com/users/jogibear9988/followers","following_url":"https://api.github.com/users/jogibear9988/following{/other_user}","gists_url":"https://api.github.com/users/jogibear9988/gists{/gist_id}","starred_url":"https://api.github.com/users/jogibear9988/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jogibear9988/subscriptions","organizations_url":"https://api.github.com/users/jogibear9988/orgs","repos_url":"https://api.github.com/users/jogibear9988/repos","events_url":"https://api.github.com/users/jogibear9988/events{/privacy}","received_events_url":"https://api.github.com/users/jogibear9988/received_events","type":"User","site_admin":false},"created_at":"2017-05-18T11:32:48Z","updated_at":"2017-05-18T11:32:48Z","body":"duplicate of https://github.com/Polymer/polymer/issues/4601"}}
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