Recreational languages win at code golf too much. This challenge is simple, when using higher level functions.
The task is as follows:
Given any valid url, which is guaranteed to result in a valid HTML document (for example https://en.wikipedia.org/wiki/Ruby_on_Rails, which has 9 images), count the number of images displayed from the resultant webpage.
Only images visible in the HTML code are counted, marked by the HTML
Websites that can continually load images (Google Images) are not valid tests.