Embedded iFrame showing up as 404

[hexpox]

Working with code below to embed another site on my weebly page. Upon publish it comes up as a tiny iframe with a 404 error code. 

Code:

<iframe frameborder=“0” width=“100%” height=“100%” src=“https://www.cccaaammm.com/“></iframe>

Publishing Weebly site to: https://hexpox.weebly.com/

[PaulMathews]

@hexpox The source url in the iframe, https://www.cccaaammm.com/, looks fake so I'm not surprised that it delivers a 404 not found error page. As far as the size of the iframe, 100% height generally doesn't work for iframes. Instead, try a percentage of the viewport height like "height: 90vh". There are fancier ways to do fully-responsive iframes but the viewport height is a reasonable quick-and-dirty method.