{"action":"opened","issue":{"url":"https://api.github.com/repos/mozilla/activity-streams/issues/237","repository_url":"https://api.github.com/repos/mozilla/activity-streams","labels_url":"https://api.github.com/repos/mozilla/activity-streams/issues/237/labels{/name}","comments_url":"https://api.github.com/repos/mozilla/activity-streams/issues/237/comments","events_url":"https://api.github.com/repos/mozilla/activity-streams/issues/237/events","html_url":"https://github.com/mozilla/activity-streams/issues/237","id":137648176,"number":237,"title":"Failed propType: Invalid prop `length` of type `string` supplied to `GroupedActivityFeed`, expected `number`.","user":{"login":"pdehaan","id":557895,"avatar_url":"https://avatars.githubusercontent.com/u/557895?v=3","gravatar_id":"","url":"https://api.github.com/users/pdehaan","html_url":"https://github.com/pdehaan","followers_url":"https://api.github.com/users/pdehaan/followers","following_url":"https://api.github.com/users/pdehaan/following{/other_user}","gists_url":"https://api.github.com/users/pdehaan/gists{/gist_id}","starred_url":"https://api.github.com/users/pdehaan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pdehaan/subscriptions","organizations_url":"https://api.github.com/users/pdehaan/orgs","repos_url":"https://api.github.com/users/pdehaan/repos","events_url":"https://api.github.com/users/pdehaan/events{/privacy}","received_events_url":"https://api.github.com/users/pdehaan/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-03-01T18:17:04Z","updated_at":"2016-03-01T18:17:04Z","closed_at":null,"body":"I'm seeing a warning/error in my DevTools console when I click the \"Activity Streams\" icon in the Firefox toolbar.\r\n\r\n![new_tab](https://cloud.githubusercontent.com/assets/557895/13436945/92730cb8-df96-11e5-88d7-a7bba1575ca9.png)\r\n\r\n> **Warning: Failed propType: Invalid prop `length` of type `string` supplied to `GroupedActivityFeed`, expected `number`. Check the render method of `TimelinePage`.**\r\n\r\n```jsx\r\n<GroupedActivityFeed title=\"Just now\" sites={props.History.rows} length=\"20\" />\r\n```\r\n\r\n&mdash; via [./content-src/components/TimelinePage/TimelinePage.js:29](https://github.com/mozilla/activity-streams/blob/88d5e697e8e7108ea1bd4d5b61c3f9f33afe6fd6/content-src/components/TimelinePage/TimelinePage.js#L29)\r\n\r\nI'm guessing it should be `{20}` like it is on [./content-src/components/NewTabPage/NewTabPage.js:32](https://github.com/mozilla/activity-streams/blob/d41acda2524569ed528c165dd55a7d0768002935/content-src/components/NewTabPage/NewTabPage.js#L32):\r\n\r\n```jsx\r\n<GroupedActivityFeed title=\"Top Activity\" sites={props.History.rows} length={6} />\r\n```\r\n\r\nPR incoming."}}