Element name gcse:searchbox-only cannot be represented as XML 1.0

Question

I am getting the following error in w3 validator,

 Line 62, Column 140: Element name gcse:searchbox-only cannot be represented as XML 1.0.

I am using Google search bar inside website which is added by this code,

<gcse:searchbox-only></gcse:searchbox-only>

Please help out to avoid this error. Thanks

Answer 1

I found this answer hidden in the google docs:

https://developers.google.com/custom-search/docs/element#html5

HTML5-valid div tags

You can use HTML5-valid div tags as long as you observe these guidelines:

• The class attribute must be set to gcse-XXX
• Any attributes must be prefixed with data-.

For example:

<div class="gcse-searchbox" data-resultsUrl="http://www.example.com" data-newWindow="true" data-queryParameterName="search" >