diff --git a/src/HttpHeader.cc b/src/HttpHeader.cc
index 31d06fcb602..d8ce2db37df 100644
--- a/src/HttpHeader.cc
+++ b/src/HttpHeader.cc
@@ -664,6 +664,14 @@ HttpHeader::parse(const char *header_start, size_t hdrLen, Http::ContentLengthIn
         }
     }
 
+    if (Config.onoff.ignore_vary) {
+        String rawVary;
+        if (getByIdIfPresent(Http::HdrType::VARY, &rawVary)) {
+            delById(Http::HdrType::VARY);
+            debugs(55, 5, "Ignoring Vary: " << rawVary);
+        }
+    }
+
     return 1;           /* even if no fields where found, it is a valid header */
 }
 
diff --git a/src/SquidConfig.h b/src/SquidConfig.h
index ae2d72cc763..5e6939bdfa7 100644
--- a/src/SquidConfig.h
+++ b/src/SquidConfig.h
@@ -310,6 +310,7 @@ class SquidConfig
 #endif
 
         int vary_ignore_expire;
+        int ignore_vary;
         int surrogate_is_remote;
         int detect_broken_server_pconns;
         int relaxed_header_parser;
diff --git a/src/cf.data.pre b/src/cf.data.pre
index 898fc9af48d..418921b8230 100644
--- a/src/cf.data.pre
+++ b/src/cf.data.pre
@@ -6969,6 +6969,24 @@ DOC_START
 	varying objects not intended for caching to get cached.
 DOC_END
 
+NAME: ignore_vary
+COMMENT: on|off
+TYPE: onoff
+LOC: Config.onoff.ignore_vary
+DEFAULT: off
+DOC_START
+	Some HTTP servers send a Vary header even though the clients
+	never send requests with different request headers.  This
+	option causes Squid to completely ignore the Vary header and
+	go ahead and cache the response using normal rules.
+
+	WARNING: Doing this this VIOLATES the HTTP standard.  Enabling
+	this can cause varying responses not intended for caching to get
+	cached.  It is intended as a workaround until HTTP/1.1 is fully
+	implemented and only for use when client behavior is fully
+	controlled.
+DOC_END
+
 NAME: request_header_access
 IFDEF: USE_HTTP_VIOLATIONS
 TYPE: http_header_access