this.props.onScriptLoaded is not a function

[RachelTakeuchi-minted]

Getting this from ScriptLoader:

Uncaught TypeError: _this2.props.onScriptLoaded is not a function
    at ScriptLoader.eval (eval at <anonymous> (app.js:7019), <anonymous>:137:32)
    at CallbackQueue.notifyAll (eval at <anonymous> (app.js:1263), <anonymous>:76:22)
    at ReactUpdatesFlushTransaction.close (eval at <anonymous> (app.js:139), <anonymous>:59:24)
    at ReactUpdatesFlushTransaction.closeAll (eval at <anonymous> (app.js:500), <anonymous>:209:25)
    at ReactUpdatesFlushTransaction.perform (eval at <anonymous> (app.js:500), <anonymous>:156:16)
    at ReactUpdatesFlushTransaction.perform (eval at <anonymous> (app.js:139), <anonymous>:89:32)
    at Object.flushBatchedUpdates (eval at <anonymous> (app.js:139), <anonymous>:172:19)
    at ReactDefaultBatchingStrategyTransaction.closeAll (eval at <anonymous> (app.js:500), <anonymous>:209:25)
    at ReactDefaultBatchingStrategyTransaction.perform (eval at <anonymous> (app.js:500), <anonymous>:156:16)
    at Object.batchedUpdates (eval at <anonymous> (app.js:1028), <anonymous>:62:26)

Looks like it's coming from startLoadingScripts in componentDidMount