Overview

Learn about the content to be covered in this chapter.

Application errors are an integral part of the lifetime of a web application. They can occur either during runtime or while developing the application. Runtime errors may happen due to an HTTP request that failed or an incomplete HTML form. Development errors usually happen when we do not properly use a programming language or framework according to its semantics. In both cases, we need a mechanism for debugging the application to investigate and fix the error.

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