command-line plugin doesn't recalculate width size for floats; forces horizontal scrollbars

I have a something like this:

<figure style="float:left; max-width: 50%;">
  <pre><code class="language-bash">cd foo/bar</code></pre>
<figure>

In other words, I have my Prism code section in a figure, and I float the entire figure on the left side, telling it that it can take up to 50% of the page. And it looks great! Obviously on most screens this figure is far smaller than the half the screen, so there is no scrollbars whatsoever.

But then if I turn on the command-line plugin, I have a problem:

<figure style="float:left; max-width: 50%;">
  <pre class="command-line"><code class="language-bash">cd foo/bar</code></pre>
<figure>

The command-line plugin adds a left section with the *nix command prompt. Great---that's what I wanted. Unfortunately the size of the floated figure does not expand horizontally, even though there is plenty of room on the left half of the screen. Because the <code> section needs more room horizontally than the <pre> element gives it, the <code> section develops horizontal scrollbars. But they are unnecessary---the entire figure should have simply expanded horizontally!

In summary, the addition of the command-line plugin makes the <code> element require more room with the addition of the command prompt, but the outer <pre> element apparently still only reserves enough space for the <code> without the command prompt, resulting in unnecessary horizontal scrollbars.

Reproduce the issue with the floated

, and Bash code shown in the report, then inspect the command-line plugin's sizing behavior. The work is done when adding the command prompt allows the floated figure to use available width without unnecessary horizontal scrollbars.