{"action":"created","issue":{"url":"https://api.github.com/repos/keplerproject/copas/issues/39","repository_url":"https://api.github.com/repos/keplerproject/copas","labels_url":"https://api.github.com/repos/keplerproject/copas/issues/39/labels{/name}","comments_url":"https://api.github.com/repos/keplerproject/copas/issues/39/comments","events_url":"https://api.github.com/repos/keplerproject/copas/issues/39/events","html_url":"https://github.com/keplerproject/copas/issues/39","id":128106119,"number":39,"title":"Revise errorhandlers","user":{"login":"Tieske","id":1077043,"avatar_url":"https://avatars.githubusercontent.com/u/1077043?v=3","gravatar_id":"","url":"https://api.github.com/users/Tieske","html_url":"https://github.com/Tieske","followers_url":"https://api.github.com/users/Tieske/followers","following_url":"https://api.github.com/users/Tieske/following{/other_user}","gists_url":"https://api.github.com/users/Tieske/gists{/gist_id}","starred_url":"https://api.github.com/users/Tieske/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Tieske/subscriptions","organizations_url":"https://api.github.com/users/Tieske/orgs","repos_url":"https://api.github.com/users/Tieske/repos","events_url":"https://api.github.com/users/Tieske/events{/privacy}","received_events_url":"https://api.github.com/users/Tieske/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":6,"created_at":"2016-01-22T08:22:40Z","updated_at":"2016-11-16T13:48:10Z","closed_at":null,"body":"The errorhandlers are called after the coroutine returns, this means that they will not have a stacktrace, which makes it very cumbersome to track down errors in handlers/coroutines.\n\nRevising them by wrapping the handler function in an `xpcall` which attaches the stacktrace to the error before reporting.\n"},"comment":{"url":"https://api.github.com/repos/keplerproject/copas/issues/comments/260950491","html_url":"https://github.com/keplerproject/copas/issues/39#issuecomment-260950491","issue_url":"https://api.github.com/repos/keplerproject/copas/issues/39","id":260950491,"user":{"login":"pranas","id":91422,"avatar_url":"https://avatars.githubusercontent.com/u/91422?v=3","gravatar_id":"","url":"https://api.github.com/users/pranas","html_url":"https://github.com/pranas","followers_url":"https://api.github.com/users/pranas/followers","following_url":"https://api.github.com/users/pranas/following{/other_user}","gists_url":"https://api.github.com/users/pranas/gists{/gist_id}","starred_url":"https://api.github.com/users/pranas/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pranas/subscriptions","organizations_url":"https://api.github.com/users/pranas/orgs","repos_url":"https://api.github.com/users/pranas/repos","events_url":"https://api.github.com/users/pranas/events{/privacy}","received_events_url":"https://api.github.com/users/pranas/received_events","type":"User","site_admin":false},"created_at":"2016-11-16T13:48:10Z","updated_at":"2016-11-16T13:48:10Z","body":"@mpeterv having stack traces are great! However we see that error message sometimes comes in as nil. We checked and the same issue applies when you use default error handler. Are you aware of this problem? Any workaround for it?"}}
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