This package contains node.js project that reproduces the issue with next npm package while using MathComponent of mathjax-react.
- Node.js ^14.15.1
npm^6.14.1
- Run
npm ito install dependencies. - Run
npm run devto start development server. - Open
localhost:3000/in browser. - Observe the error message in the browser:

- Go to
./pages/index.tsxand comment the 9th line. Text<MathComponent tex={String.raw`\vec{a}`}/>should be replaced with{/* <MathComponent tex={String.raw`\vec{a}`}/> */}. - Observe that error has disappeared from browser.
- Uncomment the 9th line restoring the initial value (
<MathComponent tex={String.raw`\vec{a}`}/>). - Observe that there are no errors in the browser and formula
\vec{a}shows properly: