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
Today, I also had this problem, (damn IE).
In my project, I use httpclient
, that hasn't BaseRequestOptions
.
We should use Http_Interceptor
to resolve it!
import { HttpHandler,
HttpProgressEvent,
HttpInterceptor,
HttpSentEvent,
HttpHeaderResponse,
HttpUserEvent,
HttpRequest,
HttpResponse } from '@angular/common/http';
import { Observable } from 'rxjs/Observable';
export class CustomHttpInterceptorService implements HttpInterceptor {
intercept(req: HttpRequest<any>, next: HttpHandler):
Observable<HttpSentEvent | HttpHeaderResponse | HttpProgressEvent | HttpResponse<any> | HttpUserEvent<any>> {
const nextReq = req.clone({
headers: req.headers.set('Cache-Control', 'no-cache')
.set('Pragma', 'no-cache')
.set('Expires', 'Sat, 01 Jan 2000 00:00:00 GMT')
.set('If-Modified-Since', '0')
});
return next.handle(nextReq);
}
}
Module provide
@NgModule({
...
providers: [
...
{ provide: HTTP_INTERCEPTORS, useClass: CustomHttpInterceptorService, multi: true }
]
})