student assignment repository prefix editing stopped working

[mr-mccormick]

Hi everyone,

When creating a new student assignment, there is an button that allows editing the student assignment repository prefix. I use this on every assignment so that I can put things like semester and year in the repository prefix. Today when I click on that button, instead of opening up an edit box for me to edit the repository prefix, that section of the web page just disappears. This button was working as of some time last week. Is anyone else seeing this problem? Do you have any suggestions for a workaround?

[joshuarg007]

I have not run into this exact issue before, but it does sound like a frontend bug. It is possible that the click handler is removing the element entirely instead of just toggling it into an edit state.

A few things you can try as workarounds:

Try a different browser such as Chrome, Firefox, or Safari to rule out a browser specific issue.

Disable browser extensions. Ad blockers and privacy tools can sometimes interfere with page behavior.

Do a hard refresh to clear cached JavaScript. Use Ctrl+Shift+R on Windows (Cmd+Shift R on Mac-OS).

If that doesn't work, as a temporary workaround, you can open developer tools, right click the prefix text, choose Inspect, locate the input field in the HTML, and edit the value attribute directly.

[healer0805]

This looks like a "UI regression on GitHub's side", not something you broke.

A few instructors have hit similar issues where clicking the edit button causes the prefix section to collapse instead of opening the input. Since it worked last week and now disappears, it's very likely tied to a recent frontend change.
Things you can try as a workaround:

• Hard refresh the page or try an incognito window
• Test in a different browser
• Disable browser extensions (especially ad blockers)
• Try editing the assignment from another account with admin rights

If none of that works, the safest move is to file a GitHub Education support ticket with screenshots. Until it's fixed, the only real workaround is creating the assignment with the default prefix and renaming repos afterward.
This one's almost certainly on GitHub, not user error.

[hroncok]

I have figured out a workaround in Firefox developer tools.

Go to create an assignment page, input the assignment title.

Right-click any element near and choose Inspect.

In the HTML browser, search for assignment_form[slug]:

Remove the highlighted bits. Namely, the hidden="hidden"s and class="d-none" in the surrounding div.

Then click the edit button:

You can sefely entry the new prefix value and save the assignment.

[drblue]

Thank you, that worked 🤩! I only had to remove d-none on the main div three levels up in the hierarchy.
Note: If you edit an existing assignment, the input-field is named just assignment[slug] and not assignment_form[slug].

Here's a quick oneliner that shows the Custom repository prefix regardless of whether you're creating a new assignment or editing an existing one:

document.querySelector('input[name*="slug"]').closest("div.d-none")?.classList.remove("d-none")

[kazakanan]

It worked for me in Chrome, just removing the class="d-none" from its surrounding div tag. If you get lost in the divs, you can also just edit the input value in the HTML and then save the page.