UBlock Origin Lite Blocks API On Sizhiai.com: A Breakage Report

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uBlock Origin Lite Blocks API on sizhiai.com: A Breakage Report

Hey guys! Today, we're diving into a detailed report about a breakage issue encountered on sizhiai.com while using uBlock Origin Lite. This report meticulously outlines the problem, the steps taken to identify it, and the configuration details. If you're encountering similar issues or just want to understand how these things are diagnosed, stick around!

Prerequisites and Initial Checks

Before we get into the specifics, it's super important to ensure that we've covered all the basic troubleshooting steps. The reporter has diligently gone through a comprehensive checklist, which is fantastic! This includes:

  • Confirming it's not a common site issue: The reporter verified that the issue isn't related to popular platforms like YouTube, Facebook, or Twitch, which often have their own unique filtering challenges. Phew, that saves us some time!
  • Understanding the valid filter issue policy: This ensures the report is relevant and actionable within the uBlock Origin Lite context.
  • Checking for duplicates: No one wants to reinvent the wheel, so confirming this isn't a repeat issue is crucial.
  • Verifying default filter lists: Ensuring no default lists were removed helps narrow down the problem's origin.
  • Disabling additional filter lists: This step isolates the issue to the core uBlock Origin Lite functionality.
  • Disabling Developer mode: A key step to rule out any custom settings interfering with the extension's behavior.
  • Using Optimal or Complete filtering mode: This ensures the most aggressive blocking is tested.
  • Ruling out other interferences: The reporter checked for conflicts with the browser's built-in content blocker, network-wide blocking, VPNs, and other extensions. Talk about thorough!
  • Confirming the issue is uBO Lite-specific: This step ensures the breakage isn't a site or browser issue.
  • Ensuring the browser is up to date: Running the latest browser version helps eliminate compatibility issues.

It's awesome that the reporter has taken these steps because it gives us a solid foundation to work from. Skipping these checks can lead to a wild goose chase, trust me!

The Breakage: API Endpoint Blocked

The Specifics

The main issue? The analytics data on https://sizhiai.com/console/analytics isn't loading. After digging into the network activity, the reporter found that the API endpoint /api/stat is being blocked by uBlock Origin Lite. This is a classic breakage scenario where a filter is a little too aggressive, catching legitimate traffic in its net.

Browser and Extension Details

  • Browser: Chrome 143.0.7445.0
  • uBlock Origin Lite Version: 2025.1104.1637
  • Other Extensions: None (This is super helpful to know!)

Knowing the browser and extension versions is critical because it helps pinpoint if the issue is specific to a particular version or configuration.

Visual Evidence: A Picture is Worth a Thousand Words

The reporter included a screenshot, which is gold! Visual evidence makes it so much easier to understand the problem. We can see the blocked request right there in the network panel. This level of detail is what makes a breakage report truly effective.

Configuration Details

Diving into the YAML

The provided YAML configuration gives us a peek under the hood. Here’s a breakdown:

name: uBlock Origin Lite
version: 2025.1104.1637
browser: Chrome 143 (linux)
filtering:
 site: optimal
 default: optimal
permission: all
rulesets:
 chn-0
 easylist
 easyprivacy
 pgl
 ublock-badware
 ublock-filters
 urlhaus-full
console:
 [1109.1013]updateSessionRules/Error: Session rule count for regex rules exceeded.
 [1110.0306]insertCSS/Error: No frame with id 412 in tab with id 1128407657
 [1110.1008]insertCSS/Error: Frame with ID 0 was removed.
  • Filtering Mode: Both the site and default filtering are set to optimal, meaning uBlock Origin Lite is using its recommended blocking settings.
  • Rulesets: The active filter lists include chn-0, easylist, easyprivacy, pgl, ublock-badware, ublock-filters, and urlhaus-full. This is a fairly standard set of lists, so the issue likely lies within one of these.
  • Console Errors: The console errors might seem alarming, but they could be unrelated to the breakage. However, they're worth noting for further investigation. The Session rule count for regex rules exceeded error suggests there might be a performance bottleneck with regex-based filters. The insertCSS/Error messages indicate potential issues with injecting CSS into specific frames, which could be a separate bug.

Analyzing the configuration helps us identify potential culprits. For instance, if a specific filter list was recently updated, it might be the source of the issue. Understanding the filtering mode also gives us context on how aggressively uBlock Origin Lite is blocking content.

Potential Causes and Solutions

Pinpointing the Culprit

So, what's causing this API endpoint to be blocked? Here are a few potential avenues to explore:

  1. Overzealous Filter: One of the active filter lists might contain a rule that's too broad, inadvertently blocking the /api/stat endpoint. This is the most common cause of breakages.
  2. Custom Filters: Although the reporter didn't mention using custom filters, it's always worth double-checking if any are active.
  3. Dynamic Filtering Rules: uBlock Origin Lite's dynamic filtering can also cause issues if rules are set too restrictively. However, given the optimal filtering mode, this is less likely.

Steps to Resolve

Here’s a systematic approach to fixing this:

  1. Disable Filter Lists One by One: Start by disabling the filter lists one at a time, testing the site after each disablement. This helps identify the specific list causing the issue. It's tedious, but effective!
  2. Inspect the Filter List: Once the problematic list is identified, dive into the list's rules and look for any that might be blocking /api/stat. Tools like uBlock Origin Lite's logger can be invaluable here.
  3. Create an Exception: If you find a problematic rule, you can create an exception to allow traffic to /api/stat. This is a targeted approach that avoids disabling the entire filter list.
  4. Report the Issue: Once you've identified the problematic filter, report it to the filter list maintainers. This helps improve the list for everyone!

A Bit About Filter Lists

Filter lists are like the instruction manuals for ad blockers. They contain rules that tell the blocker what to block. These lists are maintained by volunteers and organizations, and they're constantly updated to keep up with the ever-evolving landscape of online advertising and tracking. However, sometimes these updates can introduce unintended consequences, like blocking legitimate content. That’s why breakage reports like this are so important!

Conclusion: The Importance of Detailed Reports

This breakage report is a prime example of how to effectively communicate an issue. The reporter followed all the prerequisites, provided detailed information about their setup, and included visual evidence. This makes it so much easier for developers and filter list maintainers to understand and address the problem.

When reporting issues, remember:

  • Be Thorough: Check all the prerequisites and provide as much detail as possible.
  • Be Specific: Pinpoint the exact URL, API endpoint, or element that's being blocked.
  • Include Visuals: Screenshots and screen recordings can be incredibly helpful.
  • Stay Patient: Fixing breakages can take time, especially if the issue is complex or requires updates to filter lists.

By working together and providing clear, detailed reports, we can help make the internet a cleaner, faster, and more enjoyable place for everyone. Keep those reports coming, guys! Your contributions make a real difference.