Content Negotiation using the Accept header via the SES interceptor

If extensionDetection is enabled then this will also activate the extension detection via the accept-header

Every incoming HTTP request has a special Accept header that defines what media types (or mime types) a client can "accept". The default of / will be mapped by default to HTML which will be our default format

These types will be mapped in a new structure called mimeTypes that you can declare in your routes configuration file:

<pre><code>

mimeTypes = {
xml = "text/xml",
json = [ "/", "application/json" ]
};
</code></pre>

Once the header Accept is detected and it matches one of these maps, it will set the format request collection variable to the mapped incoming format.