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Add extensible handlers to DeveloperExceptionPage #8536

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DamianEdwards opened this Issue Mar 14, 2019 · 0 comments

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DamianEdwards commented Mar 14, 2019

Add extensibility point to sub-systems to add handlers via DI that get inspected when an exception occurs. The handler can choose to render a response (e.g. the current EF diagnostic middleware page would change to this) or pass-through (do nothing). The middleware would fallback to rendering an HTML error page if no handler matched and the client sent an Accept header that included text/html, otherwise it would just return the error as plain text. For API responses, MVC would register a handler that formats a ProblemDetails with the relevant information according to the configured formatters.

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