{"action":"opened","issue":{"url":"https://api.github.com/repos/LeaVerou/prefixfree/issues/6122","repository_url":"https://api.github.com/repos/LeaVerou/prefixfree","labels_url":"https://api.github.com/repos/LeaVerou/prefixfree/issues/6122/labels{/name}","comments_url":"https://api.github.com/repos/LeaVerou/prefixfree/issues/6122/comments","events_url":"https://api.github.com/repos/LeaVerou/prefixfree/issues/6122/events","html_url":"https://github.com/LeaVerou/prefixfree/issues/6122","id":177633147,"number":6122,"title":"Opera Presto (v12) regular expression error with viewport units polyfill","user":{"login":"Fironet","id":6971981,"avatar_url":"https://avatars.githubusercontent.com/u/6971981?v=3","gravatar_id":"","url":"https://api.github.com/users/Fironet","html_url":"https://github.com/Fironet","followers_url":"https://api.github.com/users/Fironet/followers","following_url":"https://api.github.com/users/Fironet/following{/other_user}","gists_url":"https://api.github.com/users/Fironet/gists{/gist_id}","starred_url":"https://api.github.com/users/Fironet/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Fironet/subscriptions","organizations_url":"https://api.github.com/users/Fironet/orgs","repos_url":"https://api.github.com/users/Fironet/repos","events_url":"https://api.github.com/users/Fironet/events{/privacy}","received_events_url":"https://api.github.com/users/Fironet/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2016-09-18T06:30:11Z","updated_at":"2016-09-18T06:30:11Z","closed_at":null,"body":"Testing the scripts in Opera 12.18 the inspector notified on a a regex error in the viewport units polyfill (prefixfree.viewport-units.js) at line 27 (`return css`).\r\n\r\n    Unhandled Error: RegExp constructor: invalid regular expression"}}
{"actor":{"display_login":"Fironet"}}