Don't send a User-Agent by default

1 files changed, 10 insertions, 0 deletions

diff --git a/netwerk/protocol/http/nsHttpHandler.cpp b/netwerk/protocol/http/nsHttpHandler.cpp
index 7a29e041b..91c3ec49f 100644
--- a/netwerk/protocol/http/nsHttpHandler.cpp
+++ b/netwerk/protocol/http/nsHttpHandler.cpp
@@ -451,10 +451,20 @@ nsHttpHandler::AddStandardRequestHeaders(nsHttpRequestHead *request,
 {
     nsresult rv;
 
+/* The "User-Agent header is not used for it's original purpose of tracking
+ * malfuctioning software but instead abused 99.9999999% of the time to do
+ * fingerprinting, mass survailance, and anticompetive software vendor 
+ * descrimination. Most vendors just hardcode something pretending to be
+ * Mozilla 5.0 here anyways when they are obvious not Mozilla 5.0 so we just 
+ * get rid of it. It's perfectly within RFC HTTP1.1 spec to not supply
+ * this header and it says it's a SHOULD not MUST. 
+ * Use general.useragent.override.<site> for compat workarounds if need be.
+ *
     // Add the "User-Agent" header
     rv = request->SetHeader(nsHttp::User_Agent, UserAgent(),
                             false, nsHttpHeaderArray::eVarietyRequestDefault);
     if (NS_FAILED(rv)) return rv;
+*/
 
     // MIME based content negotiation lives!
     // Add the "Accept" header.  Note, this is set as an override because the