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Unsafe use of res.end() #2
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Fixing a "Error: Can't set headers after they are sent." bug
Calling res.end() does not terminate middleware's execution. Explicit exit from the function is necessary to prevent unwanted side-effect, which can include a "Error: Can't set headers after they are sent." from another (later) middleware.
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Calling res.end() does not terminate middleware's execution. Explicit exit from the function is necessary to prevent unwanted side-effects, which can include a "Error: Can't set headers after they are sent." from another (later) middleware.