"sourceMappingURL" not built with "npm install"

[jbelien]

What version of async are you using?
2.5.0

Which environment did the issue occur in (Node version/browser version)
Node.js v6.10.3 & npm 5.3.0

What did you do? Please include a minimal reproducable case illustrating issue.
I just run npm install --save async as described in the documentation.

What did you expect to happen?
Expect to have a async.min.map file build in dist folder.

What was the actual result?
No async.min.map file build in dist folder but //# sourceMappingURL=async.min.map at the end of async.min.js file.

[hargasinski]

Hi @jbelien. Thanks for the report! This will be fixed shortly.