Frequently Asked Questions
How To Enable Cross Origin Resource Sharing (CORS)
QUESTION:
I am getting connectivity errors when I try to stream with WebRTC from my website to my Red5 Pro instance. When I try running it in Chrome, it throws an error similar to this:
XMLHttpRequest cannot loadhttp://domain2.example
. Originhttp://domain1.example
is not allowed by Access-Control-Allow-Origin
ANSWER:
You need to add the CORS authorization header into your project.
In the {red5pro}/webapps/live/WEB-INF/web.xml, add the following (including the domain URL you are trying to access red5pro from):
<filter>
<filter-name>CorsFilter</filter-name>
<filter-class>org.apache.catalina.filters.CorsFilter</filter-class>
<init-param>
<param-name>cors.allowed.origins</param-name>
<param-value>http://localhost:5080, http://192.168.1.46:5080, https://mywebsite.com</param-value>
</init-param>
<init-param>
<param-name>cors.exposed.headers</param-name>
<param-value>Access-Control-Allow-Origin</param-value>
</init-param>
<init-param>
<param-name>cors.allowed.methods</param-name>
<param-value>GET, POST, PUT, DELETE, OPTIONS</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CorsFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
Please note: In all the following examples, the <domain name> should be the domain name that is assigned to your SSL certificate.
PHP:
<?php header("Access-Control-Allow-Origin: <domain name>");
use Rack::Cors do
allow do
origins '<domain-name>'
resource '<domain-name>', headers: :any, methods: :any
end
end
app.use(function(req, res, next) { res.header("Access-Control-Allow-Origin", "<domain name>"); res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept"); next(); }); app.get('/', function(req, res, next) { // Handle the get for this route }); app.post('/', function(req, res, next) { // Handle the post for this route });
ASP.NET:
Response.AppendHeader("Access-Control-Allow-Origin", "<domain name>");
For more information please see http://enable-cors.org/