Struts2 generates value="Submit" which the W3C markup validator says is an error

Question

I have the following <s:submit> tag code:

<s:submit action="shipment_deleteShipperFromChosenShipperViewList" 
          type="image" src="/llr/theme/delete.gif"
          onclick="clearDirtyFlag();deleteShipperFromChosenShipperViewList('%{organizationInfo.orgId}');"
          tabindex="16" />

which generates the following HTML:

<input type="image" 
       alt="Submit" 
       src="/llr/theme/delete.gif" 
       id="shipment_shipment_deleteShipperFromChosenShipperViewList" 
       name="action:shipment_deleteShipperFromChosenShipperViewList" 
       value="Submit"
       tabindex="16"
       onclick="clearDirtyFlag();deleteShipperFromChosenShipperViewList('1');"/>

The W3C Markup Validator (W3C) marks the HTML as an error. The error message is:

Attributevalue not allowed on element input at this point.

Evidently value is not an allowed attribute when the type is image. How do I keep Struts2 from generating the value attribute?

Answer 1

Until the fixed version is released, you have a few options.

• Use plain HTML input tag <input type="image" ...> instead of <s:submit>. If you are using not simple theme then you also should put <input> into some HTML tags.

• Copy the submit.ftl from the struts2-core jar into your project and modify it.

• Just ignore this W3C Markup Validator error, there are probably worse things to worry about. :)