# noerrors

The noerrors extension prevents TeX error messages from being displayed and shows the original TeX code instead.

Note

In version 2 of MathJax, you could configure the CSS that applied to the display of the original TeX. In version 3, the original TeX is shown via an merror MathML element instead.

Note

In version 2, this extension was included in all the combined configuration files that contain the TeX input jax, but in MathJax version 3, you must load it explicitly if you want to use it.

To load the noerrors extension, add `'[tex]/noerrors'` to the `load` array of the `loader` block of your MathJax configuration, and add `'noerrors'` to the `packages` array of the `tex` block.

    window.MathJax = {
      loader: {load: ['[tex]/noerrors']},
      tex: {packages: {'[+]': ['noerrors']}}
    };