php - How can I use clippy to copy an iframe embed code without the iframe displaying -

I have an embed code that users will use to display content hosted on their site (like & Lt; Iframe src = "mysite / feed"> ).

I want to use them to allow the copy of the embed code on my clipboard but in Firefox this result is being embedded in the page next to the Cliffie icon in the iframe.

My site is written in PHP and I am also using jquery.

Is there any way to avoid the embed code, so that it can not be embedded in my page, but still be copied correctly to the clipboard for the user?

Chrome is behaving correctly and does not display iframe, i.e. Has not been tested in.

To display HTML you need to type some letters' at least 'in those things and' Big '.

  & amp; Lt; Iframe src = "mysite / feed" & amp; Gt; & Amp; Lt; / Iframe & amp; Gt;  

This is an outline of the above text:

& lt; Iframe src = "mysite / feed" & gt; & Lt; / Iframe & gt;