Spring Boot & Thymeleaf - remove strict HTML error checking

Question

I am using Spring Boot for an MVC application, and my view technology is Thymeleaf. One of the things I need to do is copy the HTML of an existing website (not my doing...) and render it using Thymeleaf. However, some of the website's source HTML contain unclosed HTML tags (such as <meta>, <link>, <input>), or HTML tags with elements not surrounded by quotes, for example:

<div id=1></div>

instead of

<div id="1"></div>

Of course in the browser this works... But Thymeleaf will not allow this and doesn't serve the page. Is there any way to allow more lenient rules for this? I've searched Thymeleaf's documentation and Spring Boot reference and have found no answer.

Just for clarification - I've not even configured my own beans for Thyemeleaf, just added it to the classpath via maven as one of the spring-boot-starters. So right now these are default settings.

Answer 1

Spring Boot 1.5.3 supports Thymeleaf 3. Thymeleaf 3 has full html5 markup support.

Add following lines to your pom.xml to override Thymeleaf version in Spring boot and you'll be able to use unclosed tags.

<properties>
   <thymeleaf.version>3.0.6.RELEASE</thymeleaf.version>
   <thymeleaf-layout-dialect.version>2.2.1</thymeleaf-layout-dialect.version>
    ...
</properties>

Answer 2

Everything should be xthml format

For example ;

HTML LINK

<link rel="stylesheet" type="text/css" href="mystyle.css">

THYMELEAF LINK SHOULD BE ending with "/> "

 <link rel="stylesheet" href="print.css" media="print" type="text/css" />

HTML META

<meta charset="UTF-8">

THYMELEAF META SHOULD BE ending with "/>"

<meta charset="utf-8"/>

Samples

<input type="text" name="lastname" disabled /> wrong 

<input type="text" name="lastname" disabled="disabled" /> correct

otherwise pages will not be displayed because of xhmtl rules applied.

Please have a look at the link , avoid this kind of mistakes HTML and XHTML

On the other hand when the page is return to browser you will see xhtml rules converts to html format again. But the actually page it run on a server before sending client thymeleaf xhtml rules are applied.