Technical Glossary
What is a Silent Error? Diagnostics for Unlogged System Bugs
1. Definition of Silent Error
A 【Silent Error】 occurs when a program fails or encounters abnormal state without writing any stack trace or error log to system console or log files.
2. Common Causes
- 【Swallowed Exceptions】: Try-catch blocks catching exceptions without logging.
- 【Unhandled Rejections】: Unhandled async rejections in React or Next.js.
- 【Environment Dependencies】: Quiet failures under specific OS or browser configs.
3. How We Identify and Fix Silent Errors
- 【Network Interception】: Injecting interceptors across network layers.
- 【AST Code Analysis】: Scanning AST trees to find swallowed exceptions.