質問編集履歴
1
追記
title
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File without changes
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body
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@@ -12,4 +12,10 @@
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12
12
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document.html.prepend("<!DOCTYPE html>");
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13
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}
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14
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</script>
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15
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+
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16
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+
<script>
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+
window.onload=function(){
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18
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document.documentElement.prepend("<!DOCTYPE html>");
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19
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}
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20
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</script>
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15
21
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```
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