How to Fix PMD 7 XPath Suppression After Upgrading to 7.22.0

Summary During a routine upgrade to PMD 7.22.0, our CI/CD pipeline began failing due to an influx of TooManyFields violations. The team attempted to suppress these violations using an XPath expression designed to target specific DTO packages, but the suppression failed to apply. The issue stemmed from a fundamental shift in how PMD 7 handles … Read more

Fix OAuth2 Query String Too Long Errors in IIS and Kestrel

Summary A production application using Duende Identity Server and the Microsoft.AspNetCore.Authentication.MicrosoftAccount library encountered a critical infrastructure failure. During the OAuth2 callback phase, Microsoft (Entra ID) returned an extremely large query string—exceeding 20,000 characters—to the /signin-microsoft endpoint. This resulted in HTTP 404.15 errors (Query String Too Long) at the IIS layer, effectively breaking the Single Sign-On … Read more

Fix Power Automate Designer in Classic Mode: Clear Cookie and Enable Modern UI

Summary The Power Automate Cloud flow editor can become stuck in Classic Designer mode, hiding the toggle that normally switches to the Modern Designer. Adding ?v3=true to the URL often forces the new UI, but when that fails the underlying cause is usually a cached user setting or tenant‑level feature flag that forces the legacy … Read more

Diagnosing Atlas Search Index Test Failures with TestContainers

Postmortem: MongoDB Atlas Search Index Testing Failure with TestContainers Summary The integration test for MongoDB Atlas Search indexes fails with a connection refused error when attempting to verify search index configuration through TestContainers. The test uses mongodb/mongodb-atlas-local:8.0.4 but cannot establish connectivity to the container, resulting in MongoServerError: Error connecting to localhost:27027. Key Takeaway: Atlas Search … Read more

Avoiding Syntax Errors in BigQuery MERGE Scripts

Summary A developer attempted to perform multiple DML (Data Manipulation Language) operations—specifically multiple MERGE statements—within a single BigQuery script to optimize costs. Because the source dataset is large and expensive to scan, the intent was to “read once, write twice.” However, the developer encountered syntax errors when attempting to chain these commands, leading to a … Read more

Fixing React Native Worklets Plugin Babel Configuration Errors

Summary An Android bundling failure occurred in a React Native Expo environment due to a Babel configuration mismatch. The bundler failed to resolve the module react-native-worklets/plugin, preventing the application from starting. Despite standard troubleshooting steps like clearing the cache and reinstalling dependencies, the error persisted because the declared plugin in babel.config.js did not exist within … Read more

Fixing Firefox Dark Mode Detection on dwm Arch Linux

Summary Firefox (and forks like LibreWolf) does not automatically infer the system’s light/dark theme on dwm/Arch. The browser relies on a GTK + Qt theme setting or a manual preference (ui.systemUsesDarkTheme) to decide whether to expose prefers-color-scheme: dark to websites. Without configuring these, sites fall back to their default (often light) and you get a sudden “flash” … Read more

Why Supabase self‑hosted email appears disabled in the dashboard but still works

Summary In this postmortem, we analyze a common discrepancy in self-hosted Supabase environments where the administrative dashboard reports a service (Email/SMTP) as “disabled” even though the underlying service (GoTrue/Auth) is fully functional and successfully delivering emails. This is a state-sync illusion caused by the separation of the control plane (Dashboard) and the data plane (Auth … Read more

Resolving TypeError in Gitstream PR Description Automation

Summary A developer attempted to implement a local gitstream.cm file to automate Pull Request (PR) descriptions by scraping metadata from a README.md located within a feature-specific subdirectory. Despite the intent to override an organization-level configuration, the push triggered a fatal runtime exception: TypeError: Me.replace is not a function. This error caused the automation engine to … Read more