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Home/ Questions/Q 8397153
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Editorial Team
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Editorial Team
Asked: June 9, 20262026-06-09T20:43:08+00:00 2026-06-09T20:43:08+00:00

By default, Tornado puts a Cache-Control: public header on any file served by a

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By default, Tornado puts a Cache-Control: public header on any file served by a StaticFileHandler. How can this be changed to Cache-Control: no-cache?

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  1. Editorial Team
    Editorial Team
    2026-06-09T20:43:09+00:00Added an answer on June 9, 2026 at 8:43 pm

    Looking into the tornado/web.py it seems that the easiest way is to subclass the StaticFileHandler and override the set_extra_headers method.

    def set_extra_headers(self, path):
        self.set_header("Cache-control", "no-cache")
    
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