回答編集履歴
2
修正
test
CHANGED
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@@ -33,3 +33,25 @@
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33
33
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});
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34
34
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});
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35
35
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```
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36
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+
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37
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+
# 修正版
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38
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+
※ブラウザ間の挙動の調整ができてませんでした
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39
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+
```javascript
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40
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+
<script>
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41
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+
const nodragover=()=>{
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42
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+
event.preventDefault();
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43
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+
event.dataTransfer.dropEffect = "none";
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44
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+
}
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45
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+
window.addEventListener('DOMContentLoaded', ()=>{
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46
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+
document.querySelectorAll('iframe').forEach(x=>{
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47
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+
x.contentDocument.addEventListener('dragover',nodragover);
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48
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+
x.addEventListener('load',()=>x.contentDocument.addEventListener('dragover',nodragover));
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49
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});
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50
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});
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51
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+
document.addEventListener('dragover',nodragover);
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52
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+
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53
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</script>
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54
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+
<iframe></iframe>
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55
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+
<iframe></iframe>
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56
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+
<iframe></iframe>
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57
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+
```
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1
追記
test
CHANGED
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@@ -20,3 +20,16 @@
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20
20
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child
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21
21
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```
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22
22
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23
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+
# 追記
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24
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+
メインページだけで制御したなら子windowのloadを待ってイベント制御する感じ
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25
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+
```javascript
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26
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const nodragover=doc=>doc.addEventListener('dragover',e=>e.dataTransfer.dropEffect = "none");
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27
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+
window.addEventListener('DOMContentLoaded', ()=>{
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28
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nodragover(document);
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29
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+
document.querySelectorAll('iframe').forEach(x=>{
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30
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+
x.addEventListener('load', ()=>{
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31
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nodragover(x.contentDocument);
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32
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});
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33
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});
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34
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+
});
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35
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+
```
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