diff --git a/netwerk/protocol/http/HttpBaseChannel.cpp b/netwerk/protocol/http/HttpBaseChannel.cpp
index 946f3f00b925..5d8417841a6b 100644
--- a/netwerk/protocol/http/HttpBaseChannel.cpp
+++ b/netwerk/protocol/http/HttpBaseChannel.cpp
@@ -2206,6 +2206,7 @@ HttpBaseChannel::RedirectTo(nsIURI *targetURI)
   nsAutoCString spec;
   targetURI->GetAsciiSpec(spec);
   LOG(("HttpBaseChannel::RedirectTo [this=%p, uri=%s]", this, spec.get()));
+  LogCallingScriptLocation(this);
 
   // We cannot redirect after OnStartRequest of the listener
   // has been called, since to redirect we have to switch channels
diff --git a/netwerk/protocol/http/HttpChannelChild.cpp b/netwerk/protocol/http/HttpChannelChild.cpp
index 9c1ff479000c..1343681354fb 100644
--- a/netwerk/protocol/http/HttpChannelChild.cpp
+++ b/netwerk/protocol/http/HttpChannelChild.cpp
@@ -2356,6 +2356,8 @@ HttpChannelChild::Cancel(nsresult status)
 {
   LOG(("HttpChannelChild::Cancel [this=%p, status=%" PRIx32 "]\n",
        this, static_cast<uint32_t>(status)));
+  LogCallingScriptLocation(this);
+
   MOZ_ASSERT(NS_IsMainThread());
 
   if (!mCanceled) {
@@ -2467,18 +2469,7 @@ HttpChannelChild::AsyncOpen(nsIStreamListener *listener, nsISupports *aContext)
              "security flags in loadInfo but asyncOpen2() not called");
 
   LOG(("HttpChannelChild::AsyncOpen [this=%p uri=%s]\n", this, mSpec.get()));
-
-  if (LOG4_ENABLED()) {
-    JSContext* cx = nsContentUtils::GetCurrentJSContext();
-    if (cx) {
-      nsAutoCString fileNameString;
-      uint32_t line = 0, col = 0;
-      if (nsJSUtils::GetCallingLocation(cx, fileNameString, &line, &col)) {
-        LOG(("HttpChannelChild %p source script=%s:%u:%u",
-             this, fileNameString.get(), line, col));
-      }
-    }
-  }
+  LogCallingScriptLocation(this);
 
 #ifdef DEBUG
   AssertPrivateBrowsingId();
diff --git a/netwerk/protocol/http/HttpLog.h b/netwerk/protocol/http/HttpLog.h
index 21f29cdcdd9c..4dfe6f303aa2 100644
--- a/netwerk/protocol/http/HttpLog.h
+++ b/netwerk/protocol/http/HttpLog.h
@@ -36,6 +36,7 @@
 //
 namespace mozilla {
 namespace net {
+void LogCallingScriptLocation(void* instance);
 extern LazyLogModule gHttpLog;
 }
 }
diff --git a/netwerk/protocol/http/nsHttp.cpp b/netwerk/protocol/http/nsHttp.cpp
index 5fe963ee9f12..a1deb342243f 100644
--- a/netwerk/protocol/http/nsHttp.cpp
+++ b/netwerk/protocol/http/nsHttp.cpp
@@ -835,5 +835,25 @@ ParsedHeaderValueListList::ParsedHeaderValueListList(const nsCString &fullHeader
     Tokenize(mFull.BeginReading(), mFull.Length(), ',', consumer);
 }
 
+void LogCallingScriptLocation(void* instance)
+{
+    if (!LOG4_ENABLED()) {
+        return;
+    }
+
+    JSContext* cx = nsContentUtils::GetCurrentJSContext();
+    if (!cx) {
+        return;
+    }
+
+    nsAutoCString fileNameString;
+    uint32_t line = 0, col = 0;
+    if (!nsJSUtils::GetCallingLocation(cx, fileNameString, &line, &col)) {
+        return;
+    }
+
+    LOG(("%p called from script: %s:%u:%u", instance, fileNameString.get(), line, col));
+}
+
 } // namespace net
 } // namespace mozilla