Delete headers from Angular.js $http request

Question

I want to delete some $http request header fields from one specific request (it means not on the $httpProvider level). These fields are:

Cache-Control
If-Modified-Since
Referer
X-Requested-With

How to do this in a single request? I tried to use transformRequest parameter, but didn't find enough information to make it work. Such a [CoffeeScript] code:

$scope.logout = ->
  $http({
    method: 'GET'
    url: '/api/logout'
    headers: { 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' }
    transformRequest: (data, headersGetter) ->
      console.log data
      console.log headersGetter
      data
  }).success ->
    $location.path('editor')

shows that data is undefined, headersGetter is function (c){a||(a=Nb(b));return c?a[y(c)]||null:a} (which says to me absolutely nothing), and I didn't understand what to return from the transformRequest function.

Josh Lee · Accepted Answer · 2013-03-20 18:10:24Z

7

If you use the unminified version of Angular, you'll get nicer backtraces when an exception happens, and you'll have an easier time introspecting the angular code. I personally recommend it while developing. Here's what headersGetter actually looks like:
```
function (name) {
    if (!headersObj) headersObj =  parseHeaders(headers);

    if (name) {
      return headersObj[lowercase(name)] || null;
    }

    return headersObj;
  } 
```
The data argument to your transformer will be undefined unless you’re POSTing some data.
The headersGetter function takes an optional argument name, if you want to get a single header, but you omit the argument to set a header:
```
headersGetter()['Cache-Control'] = 'no-cache';
headersGetter()['X-Requested-With'] = '';
```
The return value from your transformer should be the value of data you want to use.
You can’t change the Referer header from XHR.

edited Mar 20, 2013 at 18:10

answered Mar 20, 2013 at 18:03

Josh Lee

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