XMLHttpRequest cannot load. The request was redirected to., which is disallowed for cross-origin requests that require preflight

Question

I have my backend with spring mvc and my frontend with sencha touch, I want to send an image in base 64 through POST using Ajax.Request.

But I get the following error:

XMLHttpRequest cannot load http://ip:port/projectname/method?  The request was redirected to '', which is disallowed for cross-origin requests that require preflight.

I am using cors-filter with manven

<dependency>
    <groupId>com.thetransactioncompany</groupId>
    <artifactId>cors-filter</artifactId>
    <version>1.9.2</version>
</dependency>

My web.xml

    <filter>
        <filter-name>CORS</filter-name>
        <filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>

        <init-param>
            <param-name>cors.allowGenericHttpRequests</param-name>
            <param-value>true</param-value>
        </init-param>

        <init-param>
            <param-name>cors.allowOrigin</param-name>
            <param-value>*</param-value>
        </init-param>

        <init-param>
            <param-name>cors.allowSubdomains</param-name>
            <param-value>false</param-value>
        </init-param>

        <init-param>
            <param-name>cors.supportedMethods</param-name>
            <param-value>GET, HEAD, POST, OPTIONS</param-value>
        </init-param>

        <init-param>
            <param-name>cors.supportedHeaders</param-name>
            <param-value>*</param-value>
        </init-param>   

        <init-param>
            <param-name>cors.supportsCredentials</param-name>
            <param-value>true</param-value>
        </init-param>

        <init-param>
            <param-name>cors.maxAge</param-name>
            <param-value>3600</param-value>
        </init-param>

</filter>

        <filter-mapping>
            <!-- CORS Filter mapping -->
            <filter-name>CORS</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>

My Ajax.Request

Ext.Ajax.request({
    url : 'http://192.168.10.90:8080/projectname/method',
    headers: {
        'Content-Type': 'application/json; charset=utf-8'
    },
    method: 'POST',
    params: Ext.JSON.encode({
        image: "imagebase64"
    }),
    success : function(response) {
        ........
    },
    failure : function(response) {
         .........
    }
});

I've tried several examples to enable the cors-filter in spring but none have worked. I don't know what else to do.