Load RevealHighlight plugin async?

[jschildgen]

I just upgraded my slides from reveal.js 3.x to 4.1

In the slides, code is included from code files using the sampler plugin. https://github.com/ldionne/reveal-sampler

<pre><code class="java" data-sample='path/to/source.java'></code></pre>

The problem is that the code on the slide is not highlighted anymore. I guess this is because the highlight plugin needs to be loaded asynchronously?

Does anybody have a solution for how to support code highlighting for code that is not hard-coded within the slides?

[jschildgen]

I found a solution. I added the following in the end of the sampler plugin code:

        if (typeof hljs !== 'undefined') {
            hljs.highlightBlock(element);
        }
        // this is new:
        if (typeof RevealHighlight !== 'undefined') {
            RevealHighlight().highlightBlock(element);
        }