{"action":"created","issue":{"url":"https://api.github.com/repos/Khan/KaTeX/issues/374","repository_url":"https://api.github.com/repos/Khan/KaTeX","labels_url":"https://api.github.com/repos/Khan/KaTeX/issues/374/labels{/name}","comments_url":"https://api.github.com/repos/Khan/KaTeX/issues/374/comments","events_url":"https://api.github.com/repos/Khan/KaTeX/issues/374/events","html_url":"https://github.com/Khan/KaTeX/issues/374","id":113222971,"number":374,"title":"No character metrics for '■' in style 'Main-Regular'","user":{"login":"miestasmia","id":6569199,"avatar_url":"https://avatars.githubusercontent.com/u/6569199?v=3","gravatar_id":"","url":"https://api.github.com/users/miestasmia","html_url":"https://github.com/miestasmia","followers_url":"https://api.github.com/users/miestasmia/followers","following_url":"https://api.github.com/users/miestasmia/following{/other_user}","gists_url":"https://api.github.com/users/miestasmia/gists{/gist_id}","starred_url":"https://api.github.com/users/miestasmia/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/miestasmia/subscriptions","organizations_url":"https://api.github.com/users/miestasmia/orgs","repos_url":"https://api.github.com/users/miestasmia/repos","events_url":"https://api.github.com/users/miestasmia/events{/privacy}","received_events_url":"https://api.github.com/users/miestasmia/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/Khan/KaTeX/labels/bug","name":"bug","color":"fc2929"}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":8,"created_at":"2015-10-25T12:23:59Z","updated_at":"2016-09-17T00:31:00Z","closed_at":null,"body":"When using `\\blacksquare` Chrome 46 spits out a warning `No character metrics for '■' in style 'Main-Regular'`."},"comment":{"url":"https://api.github.com/repos/Khan/KaTeX/issues/comments/247737436","html_url":"https://github.com/Khan/KaTeX/issues/374#issuecomment-247737436","issue_url":"https://api.github.com/repos/Khan/KaTeX/issues/374","id":247737436,"user":{"login":"kevinbarabash","id":1044413,"avatar_url":"https://avatars.githubusercontent.com/u/1044413?v=3","gravatar_id":"","url":"https://api.github.com/users/kevinbarabash","html_url":"https://github.com/kevinbarabash","followers_url":"https://api.github.com/users/kevinbarabash/followers","following_url":"https://api.github.com/users/kevinbarabash/following{/other_user}","gists_url":"https://api.github.com/users/kevinbarabash/gists{/gist_id}","starred_url":"https://api.github.com/users/kevinbarabash/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/kevinbarabash/subscriptions","organizations_url":"https://api.github.com/users/kevinbarabash/orgs","repos_url":"https://api.github.com/users/kevinbarabash/repos","events_url":"https://api.github.com/users/kevinbarabash/events{/privacy}","received_events_url":"https://api.github.com/users/kevinbarabash/received_events","type":"User","site_admin":false},"created_at":"2016-09-17T00:30:59Z","updated_at":"2016-09-17T00:30:59Z","body":"`\\notin` legitimately does not have metrics.  It's in our KaTeX_Math-Regular font files, but it doesn't exist in `mapping.pl`.  A person would need to have a look at https://github.com/Khan/MathJax-dev/blob/master/fonts/OTF/TeX/makeFF (which is used to generate our font files) to see how `\\notin` (decimal unicode character 2209) makes its way into the font."}}
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