{"action":"closed","issue":{"url":"https://api.github.com/repos/Khan/khan-exercises/issues/148352","labels_url":"https://api.github.com/repos/Khan/khan-exercises/issues/148352/labels{/name}","comments_url":"https://api.github.com/repos/Khan/khan-exercises/issues/148352/comments","events_url":"https://api.github.com/repos/Khan/khan-exercises/issues/148352/events","html_url":"https://github.com/Khan/khan-exercises/issues/148352","id":24668461,"number":148352,"title":"1-digit subtraction - Can't see problem","user":{"login":"KhanBugz","id":924247,"avatar_url":"https://avatars.githubusercontent.com/u/924247?v=3","gravatar_id":"","url":"https://api.github.com/users/KhanBugz","html_url":"https://github.com/KhanBugz","followers_url":"https://api.github.com/users/KhanBugz/followers","following_url":"https://api.github.com/users/KhanBugz/following{/other_user}","gists_url":"https://api.github.com/users/KhanBugz/gists{/gist_id}","starred_url":"https://api.github.com/users/KhanBugz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/KhanBugz/subscriptions","organizations_url":"https://api.github.com/users/KhanBugz/orgs","repos_url":"https://api.github.com/users/KhanBugz/repos","events_url":"https://api.github.com/users/KhanBugz/events{/privacy}","received_events_url":"https://api.github.com/users/KhanBugz/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/Khan/khan-exercises/labels/chrome","name":"chrome","color":"e102d8"},{"url":"https://api.github.com/repos/Khan/khan-exercises/labels/not-showing","name":"not-showing","color":"28AE7B"},{"url":"https://api.github.com/repos/Khan/khan-exercises/labels/scratchpad","name":"scratchpad","color":"DDDDDD"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2013-12-21T18:00:52Z","updated_at":"2015-11-18T21:45:41Z","closed_at":"2015-11-18T21:45:41Z","body":"working on a mac with Chrome... can't see the problem.\n\n[subtraction_1.html?seed=144&problem=0](http://sandcastle.kasandbox.org/media/castles/Khan:master/exercises/subtraction_1.html?seed=144&problem=0&debug&lang=en)\n\n[Answer timeline](http://sandcastle.kasandbox.org/media/castles/Khan:master/exercises/subtraction_1.html?seed=144&problem=0&debug&lang=en&activity=%5B%5B%22hint-activity%22%2C%220%22%2C19%5D%2C%5B%22hint-activity%22%2C%220%22%2C0%5D%2C%5B%22hint-activity%22%2C%220%22%2C0%5D%5D)\n\n    []\n\nLocale: en\n\nUser hash: 1646517503\n\nMozilla/5.0 (Macintosh; Intel Mac OS X 10_8_5) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11\n\nMathJax is loaded, ready, queue length: 11\n\n\n\nhttps://www.khanacademy.org/khan-exercises/third_party/MathJax/2.1/jax/output/HTML-CSS/fonts/TeX/fontdata.js: error\n\nstart of log\nloadModule mod /khan-exercises/utils/answer-types.js\nloadModule mod /khan-exercises/utils/tmpl.js\nloadModule mod /khan-exercises/utils/tex.js\nloadModule mod /khan-exercises/utils/jquery.adhesion.js\nloadModule mod /khan-exercises/utils/calculator.js\nloadModule mod /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nloadScript loading /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nloadScript loaded /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nstartTask...\nstartTask got task addition_1\nrenderExerciseTask addition_1\nloading and rendering addition_1\nloadExercise start addition_1.html\nloadExercise got addition_1.html\nloadExercise submod math\nloadModule mod /khan-exercises/utils/math.js\nloadModule mod /khan-exercises/utils/../third_party/raphael.js\nloadModule mod /khan-exercises/utils/knumber.js\nloadExercise submod graphie\nloadModule mod /khan-exercises/utils/graphie.js\nloadModule mod /khan-exercises/utils/kpoint.js\nloadModule mod /khan-exercises/utils/kvector.js\nloadExercise submod graphie-helpers-arithmetic\nloadModule mod /khan-exercises/utils/graphie-helpers-arithmetic.js\nloadExercise submod word-problems\nloadModule mod /khan-exercises/utils/word-problems.js\nloadExercise submod answer-types\nloadExercise submod tmpl\nloadExercise submod tex\nloadExercise submod jquery.adhesion\nloadExercise submod calculator\nloadExercise submod /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nloadExercise finish addition_1.html\nloaded addition_1, now rendering\nloadModule mod /khan-exercises/utils/scratchpad.js\nloadModule mod /khan-exercises/utils/../third_party/jquery.mobile.vmouse.js\nstart of makeProblem\nchose problem type and seed for addition_1\ncloned problem\ncloned global elements\nran tmplApply to vars and main elements\nran tmplApply to [id]\nremoved hints from DOM\nevaled inline scripts\nadded inline styles\n(answer-typesLoad not a fn; src undefined)\nrunning tmplLoad\nran tmplLoad\n(texLoad not a fn; src undefined)\n(jquery.adhesionLoad not a fn; src undefined)\n(calculatorLoad not a fn; src undefined)\nrunning mathLoad\nran mathLoad\n(../third_party/raphaelLoad not a fn; src undefined)\n(knumberLoad not a fn; src undefined)\nrunning graphieLoad\nran graphieLoad\nrunning kpointLoad\nran kpointLoad\nrunning kvectorLoad\nran kvectorLoad\n(graphie-helpers-arithmeticLoad not a fn; src undefined)\nrunning word-problemsLoad\nran word-problemsLoad\ndone with runModules Load\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\ndone with runModules\ndecided on answer type number\nvalidator created\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\nloading and rendering addition_1\nloaded addition_1, now rendering\n(answer-typesCleanup not a fn; src undefined)\n(tmplCleanup not a fn; src undefined)\nrunning texCleanup\nran texCleanup\n(jquery.adhesionCleanup not a fn; src undefined)\n(calculatorCleanup not a fn; src undefined)\n(mathCleanup not a fn; src undefined)\n(../third_party/raphaelCleanup not a fn; src undefined)\n(knumberCleanup not a fn; src undefined)\n(graphieCleanup not a fn; src undefined)\n(kpointCleanup not a fn; src undefined)\n(kvectorCleanup not a fn; src undefined)\n(graphie-helpers-arithmeticCleanup not a fn; src undefined)\n(word-problemsCleanup not a fn; src undefined)\n(answer-typesCleanup not a fn; src undefined)\n(tmplCleanup not a fn; src undefined)\nrunning texCleanup\nran texCleanup\n(jquery.adhesionCleanup not a fn; src undefined)\n(calculatorCleanup not a fn; src undefined)\n(mathCleanup not a fn; src undefined)\n(../third_party/raphaelCleanup not a fn; src undefined)\n(knumberCleanup not a fn; src undefined)\n(graphieCleanup not a fn; src undefined)\n(kpointCleanup not a fn; src undefined)\n(kvectorCleanup not a fn; src undefined)\n(graphie-helpers-arithmeticCleanup not a fn; src undefined)\n(word-problemsCleanup not a fn; src undefined)\nstart of makeProblem\nchose problem type and seed for addition_1\ncloned problem\ncloned global elements\nran tmplApply to vars and main elements\nran tmplApply to [id]\nremoved hints from DOM\nevaled inline scripts\nadded inline styles\n(answer-typesLoad not a fn; src undefined)\nrunning tmplLoad\nran tmplLoad\n(texLoad not a fn; src undefined)\n(jquery.adhesionLoad not a fn; src undefined)\n(calculatorLoad not a fn; src undefined)\nrunning mathLoad\nran mathLoad\n(../third_party/raphaelLoad not a fn; src undefined)\n(knumberLoad not a fn; src undefined)\nrunning graphieLoad\nran graphieLoad\nrunning kpointLoad\nran kpointLoad\nrunning kvectorLoad\nran kvectorLoad\n(graphie-helpers-arithmeticLoad not a fn; src undefined)\nrunning word-problemsLoad\nran word-problemsLoad\ndone with runModules Load\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\ndone with runModules\ndecided on answer type number\nvalidator created\nstartTask...\nstartTask got task subtraction_1\nrenderExerciseTask subtraction_1\nloading and rendering subtraction_1\nloadExercise start subtraction_1.html\nloadExercise got subtraction_1.html\nloadExercise submod math\nloadExercise submod graphie\nloadExercise submod graphie-helpers-arithmetic\nloadExercise submod word-problems\nloadExercise submod answer-types\nloadExercise submod tmpl\nloadExercise submod tex\nloadExercise submod jquery.adhesion\nloadExercise submod calculator\nloadExercise submod /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nloadExercise finish subtraction_1.html\nloaded subtraction_1, now rendering\n(answer-typesCleanup not a fn; src undefined)\n(tmplCleanup not a fn; src undefined)\nrunning texCleanup\nran texCleanup\n(jquery.adhesionCleanup not a fn; src undefined)\n(calculatorCleanup not a fn; src undefined)\n(mathCleanup not a fn; src undefined)\n(../third_party/raphaelCleanup not a fn; src undefined)\n(knumberCleanup not a fn; src undefined)\n(graphieCleanup not a fn; src undefined)\n(kpointCleanup not a fn; src undefined)\n(kvectorCleanup not a fn; src undefined)\n(graphie-helpers-arithmeticCleanup not a fn; src undefined)\n(word-problemsCleanup not a fn; src undefined)\n(answer-typesCleanup not a fn; src undefined)\n(tmplCleanup not a fn; src undefined)\nrunning texCleanup\nran texCleanup\n(jquery.adhesionCleanup not a fn; src undefined)\n(calculatorCleanup not a fn; src undefined)\n(mathCleanup not a fn; src undefined)\n(../third_party/raphaelCleanup not a fn; src undefined)\n(knumberCleanup not a fn; src undefined)\n(graphieCleanup not a fn; src undefined)\n(kpointCleanup not a fn; src undefined)\n(kvectorCleanup not a fn; src undefined)\n(graphie-helpers-arithmeticCleanup not a fn; src undefined)\n(word-problemsCleanup not a fn; src undefined)\nstart of makeProblem\nchose problem type and seed for subtraction_1\ncloned problem\ncloned global elements\nran tmplApply to vars and main elements\nran tmplApply to [id]\nremoved hints from DOM\nevaled inline scripts\nadded inline styles\n(answer-typesLoad not a fn; src undefined)\nrunning tmplLoad\nran tmplLoad\n(texLoad not a fn; src undefined)\n(jquery.adhesionLoad not a fn; src undefined)\n(calculatorLoad not a fn; src undefined)\nrunning mathLoad\nran mathLoad\n(../third_party/raphaelLoad not a fn; src undefined)\n(knumberLoad not a fn; src undefined)\nrunning graphieLoad\nran graphieLoad\nrunning kpointLoad\nran kpointLoad\nrunning kvectorLoad\nran kvectorLoad\n(graphie-helpers-arithmeticLoad not a fn; src undefined)\nrunning word-problemsLoad\nran word-problemsLoad\ndone with runModules Load\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\ndone with runModules\ndecided on answer type number\nvalidator created\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\nloading and rendering subtraction_1\nloaded subtraction_1, now rendering\n(answer-typesCleanup not a fn; src undefined)\n(tmplCleanup not a fn; src undefined)\nrunning texCleanup\nran texCleanup\n(jquery.adhesionCleanup not a fn; src undefined)\n(calculatorCleanup not a fn; src undefined)\n(mathCleanup not a fn; src undefined)\n(../third_party/raphaelCleanup not a fn; src undefined)\n(knumberCleanup not a fn; src undefined)\n(graphieCleanup not a fn; src undefined)\n(kpointCleanup not a fn; src undefined)\n(kvectorCleanup not a fn; src undefined)\n(graphie-helpers-arithmeticCleanup not a fn; src undefined)\n(word-problemsCleanup not a fn; src undefined)\n(answer-typesCleanup not a fn; src undefined)\n(tmplCleanup not a fn; src undefined)\nrunning texCleanup\nran texCleanup\n(jquery.adhesionCleanup not a fn; src undefined)\n(calculatorCleanup not a fn; src undefined)\n(mathCleanup not a fn; src undefined)\n(../third_party/raphaelCleanup not a fn; src undefined)\n(knumberCleanup not a fn; src undefined)\n(graphieCleanup not a fn; src undefined)\n(kpointCleanup not a fn; src undefined)\n(kvectorCleanup not a fn; src undefined)\n(graphie-helpers-arithmeticCleanup not a fn; src undefined)\n(word-problemsCleanup not a fn; src undefined)\nstart of makeProblem\nchose problem type and seed for subtraction_1\ncloned problem\ncloned global elements\nran tmplApply to vars and main elements\nran tmplApply to [id]\nremoved hints from DOM\nevaled inline scripts\nadded inline styles\n(answer-typesLoad not a fn; src undefined)\nrunning tmplLoad\nran tmplLoad\n(texLoad not a fn; src undefined)\n(jquery.adhesionLoad not a fn; src undefined)\n(calculatorLoad not a fn; src undefined)\nrunning mathLoad\nran mathLoad\n(../third_party/raphaelLoad not a fn; src undefined)\n(knumberLoad not a fn; src undefined)\nrunning graphieLoad\nran graphieLoad\nrunning kpointLoad\nran kpointLoad\nrunning kvectorLoad\nran kvectorLoad\n(graphie-helpers-arithmeticLoad not a fn; src undefined)\nrunning word-problemsLoad\nran word-problemsLoad\ndone with runModules Load\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\ndone with runModules\ndecided on answer type number\nvalidator created\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(knumber not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)"}}