How to reference an image within HTML tag in Rails 4
<p>I understand that rails assets eg. an image in assets/images/ get a cache helper number appended to them ie. <code>background.jpg</code> may become <code>background77bfb376c1e.jpg</code> and therefore, a helper must be used to reference them e.g. </p>

<pre><code>asset-url("background.png", image)
</code></pre>

<p>However.. How could I reference background.jpg in a HTML tag such as this:</p>

<pre><code>&lt;header class="pt100 pb100 parallax-window-2" data-image-src="background.jpg"&gt;
</code></pre>

<p>? Apologies in advance if the solutions is obvious ...</p>