by Albert Wiersch » Wed Jul 27, 2011 1:47 pm
What is the message you are getting? The current version of CSE HTML Validator should support this and not generate an error, but it may generate other messages to let you know that it's HTML5. For example, this message:
[123] The attribute "type" has an HTML5 value "search". Some browsers may not support this value. This message is displayed only once.
You can disable that message by right-clicking on it in the editor when it is shown in the Results Window and choosing the disable option that you want. For example, if you want to disable that message and all similar messages, you can disable flag 123. If you want to only disable messages containing that exact text, then you can use the "Disable using Exact Text Match" option.
I hope this helps.

Albert Wiersch