'CodeMirror HTML mode not working

I'm trying to style code samples with CodeMirror, but it works partially - it applies the selected theme to the textarea but the syntax is not highlighted.

There is my page:

<textarea id="template-html" name="code" class="CodeMirror">
    <!DOCTYPE html>
    <foobar>
        <blah>Enter your xml here and press the button below to display it as highlighted by the CodeMirror XML mode</blah>
        <tag2 foo="2" bar="bar" />
    </foobar>
</textarea>
<link rel="stylesheet" type="text/css" href="/site.com/css/codemirror/codemirror.css">
<link rel="stylesheet" type="text/css" href="/site.com/css/codemirror/theme/ambiance.css">
<link rel="stylesheet" type="text/css" href="/site.com/css/codemirror/theme/solarized.css">
<script type="text/javascript" src="/site.com/js/libs/codemirror/codemirror.js"></script>
<script type="text/javascript" src="/site.com/js/libs/codemirror/mode/javascript/javascript.js"></script>
<script type="text/javascript">
    var config, editor;

    config = {
        lineNumbers: true,
        mode: "text/html",
        theme: "ambiance",
        indentWithTabs: false,
        readOnly: true
    };

    editor = CodeMirror.fromTextArea(document.getElementById("template-html"), config);

    function selectTheme() {
        editor.setOption("theme", "solarized dark");
    }
    setTimeout(selectTheme, 5000);
</script>

Here is an image of the result. It seems to work but without the syntax highlighting (image top), I've also tried without my CSS, but the result is the same (image bottom):

codemirror html mode

The problem is with mode: "text/html" which seems to be not working properly, if I use mode: "javascript" it colorizes the tags by the JavaScript syntax rules. How can I fix this?

Solution 1:^[1]

Just in case if my experience can be helpful to someone.

I did following mistake:

<script src="lib/codemirror.js"></script>
<script type="text/javascript">
    const editor = CodeMirror.fromTextArea(document.getElementById('textarea'), {
        mode: "css",
        lineNumbers: true,
        foldGutter: true,
        gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter", "CodeMirror-lint-markers"],
        lint: true
    });
</script>
<script src="addons/lint/lint.js"></script>
<script src="addons/lint/css-lint.js"></script>
<script src="addons/fold/brace-fold.js"></script>
<script src="addons/fold/foldcode.js"></script>
<script src="addons/fold/foldgutter.js"></script>
<script src="addons/fold/indent-fold.js"></script>
<script src="addons/fold/markdown-fold.js"></script>
<script src="mode/css.js"></script>
<script src="//unpkg.com/[email protected]/dist/csslint.js"></script>

This is wrong: I called first codemirror.js - main file, then initialized Editor and later called its assets. In this case it didn't work and it took time for me to find the issue (I was doing it in WordPress so I just made my script depend on codemirror.js only).

Solution 2:^[2]

<script>
window.onload = function() {
var editor = CodeMirror.fromTextArea(document.getElementById('textarea'), {
        mode: "text/css",
        lineNumbers: true,
        foldGutter: true,
        gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter", "CodeMirror-lint-markers"],
        lint: true
    });
}
</script>

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1	khandaniel
Solution 2	Zezo Android

'CodeMirror HTML mode not working

Solution 1:[1]

Solution 2:[2]

Sources

Related Questions

Solution 1:^[1]

Solution 2:^[2]