19 lines
841 B
Plaintext
19 lines
841 B
Plaintext
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# so, this is a bit counterintuitive. The backend creates content based on
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# the normalized User-Agent, but we use Vary on X-UA-Device so Varnish will
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# use the same cached object for all U-As that map to the same X-UA-Device.
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#
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# If the backend does not mention in Vary that it has crafted special
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# content based on the User-Agent (==X-UA-Device), add it.
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# If your backend does set Vary: User-Agent, you may have to remove that here.
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if (bereq.http.X-UA-Device) {
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if (!beresp.http.Vary) { # no Vary at all
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set beresp.http.Vary = "X-UA-Device";
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} elseif (beresp.http.Vary !~ "X-UA-Device") { # add to existing Vary
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set beresp.http.Vary = beresp.http.Vary + ", X-UA-Device";
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}
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}
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# comment this out if you don't want the client to know your
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# classification
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set beresp.http.X-UA-Device = bereq.http.X-UA-Device;
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