Chrome not requesting source map in inline script tag

Chrome isn't loading our source maps for scripts included inline in our HTML:

<script type="text/javascript">!function t(n,e,r){ /* more code */}()
//# sourceMappingURL=public/js/edit-before.js.map
</script></body>

I know Chrome isn't requesting the source map because I set the server to log all requests and also checked the Chrome network console.

Should Chrome load source maps for JS in script tags? If so, what am I doing wrong?