Which is the difference between srcdoc=“…” and src=“data:text/html,…” in an <iframe>?

前端未结

关注

 8  737

不要未来只要你来 2020-12-04 16:33

For example, which is the difference between these:

Some HTML</p>\">
</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>8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_000000118.jpg" alt=" 醉酒成梦 ">
              </a>
              <div class="fly-detail-user">
                <a href="" class="fly-link">
                  <cite> 醉酒成梦</cite>
                                             
                </a>
                
                <span>(楼主)</span>
            
              </div>              <div class="detail-hits">
                <span>2020-12-04 16:48</span>
              </div>

            </div>
            <div class="detail-body jieda-body photos">
              <p>          
<p>Another noticeable difference is that <code>src</code> attributes with data-uri support URI percent-encoding rules while <code>srcdoc</code> doesn't as it supports regular html syntax,</p>

<p>these sources will yield differently:</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-html lang-html prettyprint-override"><code><iframe srcdoc="<p>hello%20world</p><h1>give%0D%0Ame%0D%0Asome%24</h1>">

I also noticed a difference in the parsing of js scripts inside the attributes value( it's probably more than just percentage-encoding ) but didn't figure the rule yet...