<merror>
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2023.
The <merror> MathML element is used to display contents as error messages. The intent of this element is to provide a standard way for programs that generate MathML from other input to report syntax errors.
Attributes
This element accepts the global MathML attributes.
Examples
In the following example, <merror> is used to indicate a parsing error for some LaTeX-like input:
html
<math display="block">
<mfrac>
<merror>
<mtext>Syntax error: \frac{1}</mtext>
</merror>
<mn>3</mn>
</mfrac>
</math>
Technical summary
| Implicit ARIA role | None |
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Specifications
| Specification |
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| MathML Core # error-message-merror |
Browser compatibility
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merror
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Legend
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- Full support
- Full support