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Last active December 19, 2019 13:48
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import { NgModule } from '@angular/core';
import { Http, ConnectionBackend, XHRBackend } from '@angular/http';
import { MiniProfilerHttp } from './mini-profiler-http';
providers: [
provide: Http,
useClass: MiniProfilerHttp
provide: ConnectionBackend,
useClass: XHRBackend
export class AppModule { }
import { Injectable } from '@angular/core';
import { Http, Headers } from '@angular/http';
import { Observable } from 'rxjs/Observable';
import { RequestOptions } from '@angular/http';
import { ConnectionBackend, RequestOptionsArgs } from '@angular/http';
import { Request } from '@angular/http';
import { Response } from '@angular/http';
declare var MiniProfiler;
export class MiniProfilerHttp extends Http {
constructor(_backend: ConnectionBackend,
_defaultOptions: RequestOptions) {
super(_backend, _defaultOptions);
request(url: string | Request, options?: RequestOptionsArgs): Observable<Response> {
return super.request(url, options)
.map(r => {
if (typeof MiniProfiler !== 'undefined' && r && r.headers) {
return r;
private makeMiniProfilerRequests(headers: Headers) {
var miniProfilerHeaders = headers.getAll('x-miniprofiler-ids');
if (!miniProfilerHeaders) {
miniProfilerHeaders.forEach(miniProfilerIdHeaderValue => {
var ids = JSON.parse(miniProfilerIdHeaderValue) as string[];
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Shaddix commented Feb 17, 2018

For those who are using Angular's new HttpClientModule, you could check the gist

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davmszd commented Dec 19, 2019

I am trying to use your code

with DotNetCore 2.2 and Angular 8

I enable CORS like below in my startup class

services.AddCors(options => options.AddPolicy("Cors", builder =>

there is some thing strange in the response

when I console.log(r.headers) at line 22

unfortunately there is no x-miniprofiler-ids in the header object

but in fiddler and chrome network tab the x-miniprofiler-ids do exists in the response object

so UI does not show the miniprofiler detail notifier

is there any thing extra which i have to do ???

is there any specila config for dot net core or angular or httpclient ???

is your code compelete and well tested ????

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