{"action":"opened","issue":{"url":"https://api.github.com/repos/mathjax/MathJax/issues/1341","labels_url":"https://api.github.com/repos/mathjax/MathJax/issues/1341/labels{/name}","comments_url":"https://api.github.com/repos/mathjax/MathJax/issues/1341/comments","events_url":"https://api.github.com/repos/mathjax/MathJax/issues/1341/events","html_url":"https://github.com/mathjax/MathJax/issues/1341","id":123312405,"number":1341,"title":"MathJax Live Demo throws processing error on MathML","user":{"login":"rylan","id":209707,"avatar_url":"https://avatars.githubusercontent.com/u/209707?v=3","gravatar_id":"","url":"https://api.github.com/users/rylan","html_url":"https://github.com/rylan","followers_url":"https://api.github.com/users/rylan/followers","following_url":"https://api.github.com/users/rylan/following{/other_user}","gists_url":"https://api.github.com/users/rylan/gists{/gist_id}","starred_url":"https://api.github.com/users/rylan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rylan/subscriptions","organizations_url":"https://api.github.com/users/rylan/orgs","repos_url":"https://api.github.com/users/rylan/repos","events_url":"https://api.github.com/users/rylan/events{/privacy}","received_events_url":"https://api.github.com/users/rylan/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-12-21T16:35:03Z","updated_at":"2015-12-21T16:35:03Z","closed_at":null,"body":"### Issue Summary \r\n\r\nMathJax Live demo throws an error on MathML equation\r\n\r\n### Steps to Reproduce\r\nEnter the following equation into the textarea\r\n\r\n```\r\n<math xmlns=\"http://www.w3.org/1998/Math/MathML\">\r\n  <mrow>\r\n    <mi>f(x)=</mi>\r\n    <msub>\r\n      <mi>a</mi>\r\n      <mn>0</mn>\r\n    </msub>\r\n    <mo>+<mo><munderover>\r\n  <mo>&#x2211;</mo>\r\n  <mtext>n=1</mtext>\r\n  <mi>&#x221E;</mi>\r\n</munderover><mtext>(<mtext><msub>\r\n  <mi>a</mi>\r\n  <mn>n</mn>\r\n</msub><mtext>cos<mtext>(<mtext><mfrac bevelled=\"true\">\r\n  <mtext>n&#x3C0;x</mtext>\r\n  <mi>L</mi>\r\n</mfrac><mtext>)<mtext><mtext><mo>+</mo><msub>\r\n  <mi>b</mi>\r\n  <mn>n</mn>\r\n</msub><mtext>sin<mtext>(<mtext><mfrac bevelled=\"true\">\r\n  <mtext>n&#x3C0;x</mtext>\r\n  <mi>L</mi>\r\n</mfrac><mtext>)<mtext><mtext><mtext>)<mtext></mtext></mtext></mtext></mtext></mtext></mtext></mtext></mtext></mtext></mtext></mtext></mtext></mtext></mtext></mtext></mtext></mo></mo>\r\n  </mrow>\r\n</math>\r\n```\r\n\r\n### Expected result\r\n\r\nIn my setup the equation is rendering as follows\r\n![equation](https://cloud.githubusercontent.com/assets/209707/11935583/9b8e7370-a7d6-11e5-8dbd-1abd1d643ccf.png)"}}