What's the most concise cross-browser way to access an <iframe> element's window and document?

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予麋鹿 2020-12-05 14:13

I\'m trying to figure out the best way to access an </code> element\'s <code>window</code> and <code>document</code> properties from a parent page. The < <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-5408099190056760" data-ad-slot="7305827575" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> </div> <div class="fly-panel detail-box" id="flyReply"> <fieldset class="layui-elem-field layui-field-title" style="text-align: center;"> <legend>4条回答</legend> </fieldset> <ul class="jieda" id="jieda"> <li data-id="111" class="jieda-daan"> <a name="item-1111111111"></a> <div class="detail-about detail-about-reply"> <a class="fly-avatar" href=""> <img src="https://www.e-learn.cn/qa/data/avatar/000/00/01/small_000000119.jpg" alt=" 無奈伤痛 "> </a> <div class="fly-detail-user"> <a href="" class="fly-link"> <cite> 無奈伤痛</cite> </a> <span>(楼主)</span> </div> <div class="detail-hits"> <span>2020-12-05 14:42</span> </div> </div> <div class="detail-body jieda-body photos"> <p> <p>all of the modern browsers except Chrome support both <code>iframereference.contentWindow</code> and <code>iframereference.contentDocument</code>, but only if the page opened in the iframe is on the same domain as the page containing the iframe.</p> <p>To include Chrome, use <code>var iwin=iframereference.contentWindow, idoc=iwin.document;</code></p> <p><code>.contentDocument</code> is the <code>window.document</code> of the page in the iframe, as is <code>contentWindow.document</code>, but not <code>.contentDocument.document</code>.</p> <p>Chrome may include support for <code>.contentDocument</code> in some future version- I hope so, because it is also the way all the other browsers find the document contained in an Object element, type <code>text/html</code>, where the data attribute is the url of an html page.</p> </p> <div class="appendcontent"> </div> </div> <div class="jieda-reply"> <span class="jieda-zan button_agree" type="zan" data-id='858488'> <i class="iconfont icon-zan"></i> <em>0</em> </span> <span type="reply" class="showpinglun" data-id="858488"> <i class="iconfont icon-svgmoban53"></i> 讨论(0) </span> <div class="jieda-admin"> </div> <div class="noreplaytext bb"> <center><div> <a href="https://www.e-learn.cn/qa/q-250547.html"> 查看其它4个回答 </a> </div></center> </div> </div> <div class="comments-mod " style="display: none; 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var editor = UE.getEditor('editor',{ //这里可以选择自己需要的工具按钮名称,此处仅选择如下五个 toolbars:[['source','fullscreen', '|', 'undo', 'redo', '|', 'bold', 'italic', 'underline', 'fontborder', 'strikethrough', 'removeformat', 'formatmatch', 'autotypeset', 'blockquote', 'pasteplain', '|', 'forecolor', 'backcolor', 'insertorderedlist', 'insertunorderedlist', 'selectall', 'cleardoc', '|', 'rowspacingtop', 'rowspacingbottom', 'lineheight', '|', 'customstyle', 'paragraph', 'fontfamily', 'fontsize', '|', 'indent', '|', 'justifyleft', 'justifycenter', 'justifyright', 'justifyjustify', '|', 'link', 'unlink', 'anchor', '|', 'simpleupload', 'insertimage', 'scrawl', 'insertvideo', 'attachment', 'map', 'insertcode', '|', 'horizontal', '|', 'preview', 'searchreplace', 'drafts']], initialContent:'', //关闭字数统计 wordCount:false, zIndex:2, //关闭elementPath elementPathEnabled:false, //默认的编辑区域高度 initialFrameHeight:250 //更多其他参数，请参考ueditor.config.js中的配置项 //更多其他参数，请参考ueditor.config.js中的配置项 }); editor.ready(function() { editor.setDisabled(); 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