没有 src 但仍有内容的 iframe? [英] Iframe without src but still has content?

问题描述

在他们的网站上调试 jquery 代码时(通过 chrome 开发者工具栏)

我注意到他们的例子在 Iframe 下给出:

(第 54 行及以下).

或者干脆试试:

<脚本>document.querySelector('iframe').contentDocument.write("
从父框架注入
")

While debugging jquery code on their site ( via chrome developer toolbar)

I noticed that their examples are given under Iframe :

Here - for example there is a sample which is under an Iframe but after investigating , I see that the Iframe doesn't have SRC

The picture shows it all

Question :

Is it possible to set content to an Iframe without setting its SRC ?

p.s. this menu also shows me an empty content

解决方案

Yes, it is possible to load an empty <iframe> (with no src specified) and later apply content to it using script.

See: http://api.jquery.com/jquery-wp-content/themes/jquery/js/main.js (line 54 and below).

Or simply try:

<iframe></iframe>

<script>
document.querySelector('iframe')
        .contentDocument.write("<h1>Injected from parent frame</h1>")
</script>

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