Prevent IE11 caching GET call in Angular 2

Question

I have a rest endpoint that returns a list on a GET call. I also have a POST endpoint to add new items and a DELETE to remove them. This works in Firefox and Chrome, and the

Answer 1

For Angular 2 and newer, the easiest way to add no-cache headers by overriding RequestOptions:

import { Injectable } from '@angular/core';
import { BaseRequestOptions, Headers } from '@angular/http';

@Injectable()
export class CustomRequestOptions extends BaseRequestOptions {
    headers = new Headers({
        'Cache-Control': 'no-cache',
        'Pragma': 'no-cache',
        'Expires': 'Sat, 01 Jan 2000 00:00:00 GMT'
    });
}

Module:

@NgModule({
    ...
    providers: [
        ...
        { provide: RequestOptions, useClass: CustomRequestOptions }
    ]
})