質問編集履歴
1
ソースコード追記
test
CHANGED
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File without changes
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test
CHANGED
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@@ -13,3 +13,89 @@
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13
13
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14
14
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15
15
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よろしくお願いします。
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16
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+
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17
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18
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19
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20
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21
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####ソースコード追記
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22
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23
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(window.openに関わらず、aタグの_blankで別タブで開いても同じでした)
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24
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25
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26
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27
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↓ index.html
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28
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29
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30
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31
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```html
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32
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33
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<!DOCTYPE html>
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34
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35
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<html lang="ja">
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36
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37
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<head>
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38
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39
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<meta charset="UTF-8">
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40
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41
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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42
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43
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<title>Index</title>
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44
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45
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</head>
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46
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47
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<body>
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48
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49
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50
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51
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<a href="window.html" target="_blank">window.html</a>
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52
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53
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54
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55
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</body>
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56
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57
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</html>
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58
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59
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```
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60
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61
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62
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63
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↓window.html
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64
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65
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66
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67
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```html
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68
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69
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<!DOCTYPE html>
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70
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71
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<html lang="ja">
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72
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73
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<head>
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74
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75
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<meta charset="UTF-8">
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76
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77
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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78
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79
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<title>Window</title>
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80
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81
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</head>
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82
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83
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<body>
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84
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85
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86
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87
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<script>
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88
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89
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window.onbeforeunload = function(e) {
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90
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91
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e.returnValue = "本当に閉じますか？";
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92
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93
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}
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94
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95
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</script>
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96
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97
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</body>
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98
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99
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</html>
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100
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101
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```
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