/deep/ combinator is no longer supported in Angular 7

[Tahsin Gül]

Current packages on App:

• "ng-sidebar": "8.0.0",
• "@angular/common": "7.1.0",
• "@angular/compiler": "7.1.0",
• "@angular/core": "7.1.0",
• "@angular-devkit/core": "7.0.6"

Chrome says:

sidebar.component.js:469 [Deprecation] /deep/ combinator is no longer supported in CSS dynamic profile.It is now effectively no-op, acting as if it were a descendant combinator. /deep/ combinator will be removed, and will be invalid at M65. You should remove it. See https://www.chromestatus.com/features/4964279606312960 for more details.

Proposed solution was "::ng-deep" at:
deprecated-deep--and-ng-deep

[arkon]

The component doesn't actually use /deep/. Are you using it in your app?

[Tahsin Gül]

My fault, sory about that... but on product why chrome says that message from sidebar.component.js:469