this.clearCache() is not found

[alexandruantonica]

Platform: iOS only

JavaScript error:
file:///node_modules/nativescript-web-image-cache/web-image-cache.js:117:0: JS ERROR TypeError: undefined is not an object (evaluating 'this.clearCache')
(CoreFoundation) *** Terminating app due to uncaught exception 'NativeScript encountered a fatal error: TypeError: undefined is not an object (evaluating 'this.clearCache')
at
setCacheLimit(file:///node_modules/nativescript-web-image-cache/web-image-cache.js:117:0)
at ./app/app.component.ts(file:///src/app/app.component.ts:10:14)

The problems seem to be on the iOS plugin's file (here). I guess it is clearCache instead of this.clearCache().
In Android everything is alright but probably because there is a clearCache function but never used (see this)