Models page: filters, sort, and "Add filters" button completely unresponsive

The interactive UI on Models – Hugging Face is broken — “Add filters” does nothing on click, the “Sort: Trending” dropdown doesn’t open, and none of the search customization buttons respond. The page loads and renders fine visually, but no interactive elements work.

I’ve tested across all of the following with the same result:

  • Chrome (latest), Edge Chromium, Arc, and Comet on desktop (Windows)
  • iPhone Safari on cellular data (not logged in, guest session)
  • With and without extensions (only LastPass installed)
  • On home Wi-Fi and mobile cellular — same behavior on both

The browser console shows this error, which fires during page load and prevents SvelteKit hydration from completing:

TypeError: Class extends value undefined is not a constructor or null
    at Types-CMurc9rh.js:7:176177
    at chunk-DHoe5Mw4.js:1:214
    at Types-CMurc9rh.js:7:178532
    at chunk-DHoe5Mw4.js:1:214
    at Types-CMurc9rh.js:7:200109
    at chunk-DHoe5Mw4.js:1:214
    at Types-CMurc9rh.js:14:618442
    at chunk-DHoe5Mw4.js:1:214
    at Types-CMurc9rh.js:14:641864
    at chunk-DHoe5Mw4.js:1:214

Looks like a broken dependency chain in the bundled JS — a class inheritance is referencing something undefined, which kills the entire module before the UI can hydrate. Possibly a bad build cached on a specific CDN edge node (I’m in upstate New York).

URL-based filtering (e.g. ?pipeline_tag=text-generation&sort=downloads) still works fine since it bypasses the client-side JS.

Same issues are present for me in the United Kingdom.

Firefox shows the error in the console as “TypeError: class heritage t.Readable is not an object or null” with the same files mentioned.

Same here. Here’s Claude’s summary:


Filter sidebar broken on /models page — JS error in Types-CMurc9rh.js

The filter sidebar on the Models page is non-functional. Filters don’t apply when clicked.

Console error:

TypeError: Class extends value undefined is not a constructor or null
    at Types-CMurc9rh.js:7:176177
    at chunk-DHoe5Mw4.js:1:214
    at Types-CMurc9rh.js:7:178532
    at chunk-DHoe5Mw4.js:1:214
    at Types-CMurc9rh.js:7:200109
    at chunk-DHoe5Mw4.js:1:214
    at Types-CMurc9rh.js:14:618442
    at chunk-DHoe5Mw4.js:1:214
    at Types-CMurc9rh.js:14:641864
    at chunk-DHoe5Mw4.js:1:214
Promise.catch
(anonymous) @ index.js:12

Build / asset details:

  • Build ID: kube-ebc1243
  • Failing chunk: Types-CMurc9rh.js (also referenced by chunk-DHoe5Mw4.js)
  • Chunk URL path: /front/build/kube-ebc1243/Types-CMurc9rh.js
  • Last-Modified: Fri, 15 May 2026 15:50:30 GMT
  • ETag: W/"cabd2a3fc6f922abd21445100b328aa9"
  • Status: 200 OK, served from CloudFront (X-Amz-Cf-Pop: JFK50-P9), X-Cache: Hit from cloudfront
  • Content-Encoding: br

The chunk is being delivered cleanly (200, correct size, valid brotli), so this is a code-level regression in the build itself rather than a delivery issue — a module that something in this chunk extends is resolving to undefined at runtime.

Reproduction:

  • Visited /models, opened DevTools console, error fires on page load
  • Reproduces in Chrome (Chromium 148) and Safari, both in incognito/private windows with extensions disabled
  • Reproduces across two different networks and with a US VPN
  • Reproduces after Empty Cache and Hard Reload

Same thing is happening on Brave on Android and Window’s, at least in Portugal!

Same here on Firefox/Windows 11.

Same thing here on Linux, Firefox or Brave or Vivaldi all same.

Same problem. Sort, Parameter filters not working on Models search page.

I think the HF team’s web dev ops AI introduced the issue and they didn’t properly regression test.

In the last 1-2 days, many active components on the Models left panel do not work for me:

MacOS 15.4.1 Safari

Ubuntu 24.04 Firefox

I’m so fed up with all this. Lately, they’ve probably brought in a code agent. That’s the only thing that would explain the recent problems on the site. For example, I’ve started seeing things I shouldn’t (as if I had admin rights, but in reality I don’t). It’s such an unpleasant feeling, to be honest.

It could have been fixed in 12 hours. As if no one even comes here anymore.

I’m experiencing an issue on the Hugging Face Models page: Models – Hugging Face
The page loads correctly, but all interactive controls are non-functional: - Filters do not respond - Sort dropdown does not open - Buttons (e.g. “Add filters”) do nothing

TypeError: Class extends value undefined is not a constructor or null

at Types-CMurc9rh.js:7:176177

at chunk-DHoe5Mw4.js:1:214

at Types-CMurc9rh.js:7:178532

at chunk-DHoe5Mw4.js:1:214

at Types-CMurc9rh.js:7:200109

at chunk-DHoe5Mw4.js:1:214

at Types-CMurc9rh.js:14:618442

at chunk-DHoe5Mw4.js:1:214

at Types-CMurc9rh.js:14:641864

at chunk-DHoe5Mw4.js:1:214

Environment - OS: Ubuntu (latest) - Browsers: - Chrome (latest) - Edge (latest) - Firefox (latest)

I noticed the same things too. I stated them here.

Model search is completely broken.

thought it was just me

I thought it was because I was using unchromium. Logged in via Chrome and it’s still not working

Thought I was going crazy! Not working iOS 26.4 iPadOS 26.3

Maybe related:

I’ve also been having issues with model filtering since yesterday. I tried both internet explorer and firefox and both were unable to use the filter gui. I was able to manually filter by changing things in the search bar, but actually using the website gui it didn’t work.

It’s true. Can anyone solve it?

I wouldn’t exactly call it a workaround, but I guess this could work… sort of?

Search is still broken several days later. WTF???