Soft wrap no working with no-line-numbers

Information:

• Prism version: 1.27.0
• Plugins: line-numbers
• Environment: Browser

Description
When using the line-numbers plug-in, soft wrap (white-space: pre-wrap;) only works with code blocks that have line numbers. No soft wrap for code blocks with no line numbers.

Example

https://jsfiddle.net/efhu9ywa/

<style>
pre.line-numbers, pre.no-line-numbers
{
  white-space: pre-wrap;
}
</style>

<pre class="line-numbers"><code class="language-javascript">// I am a very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very long comment.</code></pre>

<pre class="no-line-numbers"><code class="language-javascript">// I am a very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very long comment.</code></pre>

Reproduce the difference in the linked JSFiddle with Prism 1.27.0, the line-numbers plugin, and white-space: pre-wrap. Inspect how the line-numbers plugin handles code blocks with and without line numbers; done means soft wrapping works in both examples and the behavior has a regression check.