wiki can't render some specific latex, and it'll affect the normal work of the program

[TaiiHu]

i copy this formula from Tupper's self-referential wikipedia,

{1 \over 2}<\left\lfloor {\mathrm {mod}}\left(\left\lfloor {y \over 17}\right\rfloor 2^{{-17\lfloor x\rfloor -{\mathrm {mod}}(\lfloor y\rfloor ,17)}},2\right)\right\rfloor

When render is done, it'll lead to a completely blank page.

I can't do anything with the website. In order to modify this article, I had to reopen the site and modify it directly from the admin page.

So do not test it at you index page.

After test, i think When a letter is in two curly brackets like {{x}} triggered this bug.

[TaiiHu]

version information here

[a2k-hanlon]

I can corroborate that this is a bug. I'm running Wiki.js v2.5.285 with Node v14.18.3 and Postgres v9.2.24. I'm using the default Katex for LaTeX parsing.

To reproduce:

1. Create a new markdown page
2. Enter just the following content:

${{x}}$

3. Save and close the page edit. The page will render completely blank in a web browser.

This is valid LaTeX and should not cause problems, but it does. Double curly braces occur frequently in LaTeX content.

However, I have found a workaround: separate any pairs of identical curly braces with a space. For the above example,

${ {x} }$

renders successfully.

For the expression in the original question, this works:

${1 \over 2}<\left\lfloor {\mathrm {mod} }\left(\left\lfloor {y \over 17}\right\rfloor 2^{ {-17\lfloor x\rfloor -{\mathrm {mod} }(\lfloor y\rfloor ,17)} },2\right)\right\rfloor$

[abhinavsood]

And while that works, just flipping the sides of the expression makes it not work:

$\left\lfloor {\mathrm {mod} }\left(\left\lfloor {y \over 17}\right\rfloor 2^{ {-17\lfloor x\rfloor -{\mathrm {mod} }(\lfloor y\rfloor ,17)} },2\right)\right\rfloor > {1 \over 2}$

[RingsGit]

same problem, batch splitting all '{{' and '}}'