Wordpress REST API create users not working - angularjs

Question

I want to create and retrieve users in my WordPress site using an AngularJS client application. I am using WP REST API (Version 2) plugin and JWT Authentication for WP REST API plugin. I am using the following code:
(function() {
var app = angular.module('jwtAuth', []);
app.config(function($httpProvider) {
$httpProvider.interceptors.push(function() {
return {
'request': function(config) {
var token = localStorage.getItem("token");
if (token) {
config.headers.Authorization = 'Bearer ' + token;
}
return config;
}
};
});
});
app.controller('MainController', function($scope, $http) {
var apiHost = 'http://mytechpen.com/wp-json'
localStorage.removeItem("token");
$http.post(apiHost + '/jwt-auth/v1/token', {
username: 'test1',
password: 'test123'
})
.then(function(response) {
console.log(response.data.token)
localStorage.setItem("token", response.data.token);
$http({
url: apiHost + '/wp/v2/users',
method: 'POST',
data: {
username: 'test4',
password: 'test123',
email: 'test4#gmail.com'
},
header: {
'Content-Type': 'application/json',
'Authorization': 'Bearer ' + response.data.token
}
})
.then(function(response) {
console.log(response.data)
})
.catch(function(error) {
console.error('Error', error);
});
})
.catch(function(error) {
console.error('Error', error);
});
});
})();
I am getting the token in the first request. But there is an error occurring in the 2nd request. That is:
I thought this is a CROS issue, so I added
Header add Access-Control-Allow-Origin "*"
To the .htaccess file. After that I am not able to get the token, I am getting an error saying Access-Control-Allow-Origin' header contains multiple values.
Here is my htaccess file without the Access-Control-Allow-Origin' header.
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
RewriteCond %{HTTP:Authorization} ^(.*)
RewriteRule ^(.*) - [E=HTTP_AUTHORIZATION:%1]
SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1
</IfModule>
# END WordPress
Apart from that I have added the configurations mentioned in JWT plugin document to wp-config file as well.

Answer 1

it work for me
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTP:Authorization} ^(.*)
RewriteRule ^(.*) - [E=HTTP_AUTHORIZATION:%1]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

Answer 2

I just added this:
RewriteEngine On
RewriteRule .* - [E=REMOTE_USER:%{HTTP:Authorization}]