Set a grace period for requests that have informational headers
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@ -51,6 +51,7 @@ sub vcl_backend_response {
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return (deliver);
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}
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if (beresp.http.ETag || beresp.http.Last-Modified || bereq.http.If-Modified-Since) {
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set beresp.grace = 1h;
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set beresp.keep = 12h;
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}
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if (beresp.status == 301) {
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