HD Quiz

After updating, Questions and Options are not accepting (save) “\”

Published: December 24, 2024
Support status: closed

After updating, Questions and Options are not accepting (save) “\” from keyboard, Earlier (upto version 1.8.15) I was using to write latex Example: π \pi, \θ \theta, \frac27 etc in question and options blocks.

thread author: Ajay

Hi Ajay,
the new version sanitizes things much more aggressively to ensure cross version compatibility as well as security. However, I like the idea of being easily able to write in latex format.

Can you provide an exact example of what it is that you want to enter as a field value? You can use pastecode.io to avoid formatting issues and sanitization here on this forum.

I’ll try and take a look at it today and push out an update for you. A holiday present 🙂

24 December 2024 — 13:48 support admin - Dylan

OK, I just went down a deep rabbit hole.

tldr Reinstall HD Quiz to get the fresh updated files. Should work for you now.

WordPress actually completely strips out all slashes when saving metadata. Period. Even if I manually saved a custom array with slashes in a string, WordPress would remove it before it reaches the database. Luckily, they also have a custom function wp_slash that essentially doubles up on properly escaped slashes, allowing the data to save as intended.

This is also great because, in theory, it should allow all of your latex variations to go through. This “solution” however, appears to be a “workaround” for a long-standing bug in WordPress. Interesting that after all these years I still discover new quirks of the platform 🙂

24 December 2024 — 14:59 support admin - Dylan

Thanks, Dylan,
Really appreciate your great support, and thank you for creating such a wonderful quiz plugin.

Reinstalling fixed the issue in the options field, but the title field is still not accepting slashes.

I am attaching a screenshot to help visualize the problem.
https://sscstudy.com/wp-content/uploads/2024/12/latex-in-HD-Quiz-1.jpg
https://sscstudy.com/wp-content/uploads/2024/12/latex-in-HD-Quiz.jpg

25 December 2024 — 00:54 thread author - Ajay

Same issue, same fix 🙂

Just updated to fix this too. Please reinstall to get the patch

26 December 2024 — 15:10 support admin - Dylan

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