showOpenWithDialog on IOS 12 IPAD does not work

Ionic Native
1

Hi,

I am using the following snippet to open a downloaded file on an iPad.
However when I try it with the .open it works like a charm, but when I use the showOpenWIthDialog it does nothing. No error , only the message the file is opened.
Anyone has any idea?

private openDocument(filePath: string, mimeType: string) {

this.fileOpener
 // .showOpenWithDialog(filePath, mimeType ) //open(filePath, mimeType)
  .open(filePath, mimeType) // opens with default
  .then(() => {
    console.log("File has been opened");
    this.log.information(`File ${filePath} is opened`);
  })
  .catch(e => {
    console.log("Error opening file", e);
    this.log.error(`file ${filePath} cannot be opened`);
    this.log.error(e);
  });

}

ionic info:
Ionic:

Ionic CLI : 5.4.13 (/usr/local/lib/node_modules/ionic)
Ionic Framework : @ionic/angular 4.11.7
@angular-devkit/build-angular : 0.803.21
@angular-devkit/schematics : 8.1.3
@angular/cli : 8.3.21
@ionic/angular-toolkit : 2.0.0

Cordova:

Cordova CLI : 9.0.0 (cordova-lib@9.0.1)
Cordova Platforms : ios 5.1.1
Cordova Plugins : cordova-plugin-ionic-keyboard 2.2.0, cordova-plugin-ionic-webview 2.5.2, (and 12 other plugins)

Utility:

cordova-res : not installed
native-run : 0.3.0

System:

ios-deploy : 1.10.0
ios-sim : 8.0.2
NodeJS : v10.16.3 (/usr/local/bin/node)
npm : 6.9.0
OS : macOS Catalina
Xcode : Xcode 11.3.1 Build version 11C504