res.sendFile(path [, options] [, fn]) res.sendFile() is supported by Express v4.8.0 onwards
res.location(path) Sets the response Location HTTP header to the specified path parameter.
res.set(field [, value]) Sets the response’s HTTP header field to value. To set multiple fields at once, pass an object
res.cookie(name, value [, options]) Sets cookie name to value. The value parameter may be a string or
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