Angular 7无法获取http标头

Question

I trying to do some scraping without python, just a simple http get request from web angular app, the problem is the response, I need gain access to the headers, to get the csrftoken header.

error: SyntaxError: Unexpected token < in JSON at position 0 at JSON.parse (<anonymous>) at XMLHttpRequest.onLoad (http://localhost:4200/vendor.

Code:

const headers = new HttpHeaders().set('Content-Type', 'text/html; charset=utf-8');

const r = this.http.request<HttpResponse<Object>>('GET', 'https://www.example.com', {
  headers: headers
});

Answer 1

Your server need to expose Access-Control-Expose-Headers header to get access to one that you need from js.

If your response is not a valid json then try using observe property ( observe: 'response' ) on request to prevent angular to parse it as json