EE changes source code

I have embedded a video, which requires a “&” in the source code. EE changes “&” to “&”, thereby messing up the code.

Here is what is should be: <iframe allowfullscreen=”” frameborder=”0” height=”360” width=”640” src=”https://player.vimeo.com/video/281895720?autoplay=0&#t=0m2s” ></iframe>

Here’s what EE does to it: <iframe allowfullscreen=”” frameborder=”0” height=”360” width=”640” src=”https://player.vimeo.com/video/281895720?autoplay=0&#t=0m2s”></iframe>

How do I fix this code?

Update. This forum changes the ampersand HTML code to “&”. I don’t think you can see that it’s just the ampersand character that needs to be in the code.