[DEP0097] DeprecationWarning: Using a domain property in MakeCallback is deprecated. Use the async_context variant of MakeCallback or the AsyncResource class instead.

[jnovack]

In Node12, domain becomes DEPRECATED. https://nodejs.org/docs/latest-v12.x/api/domain.html

it-optional/tryasync.js

Line 3 in 4f35ef7

var domain = require("domain");

Please either correct or republish with the following caveat in package.json

    engines: {
        node: "<11";
    }