diff --git a/js/libtextsecure.js b/js/libtextsecure.js
index 055bc4f26..89b93ea5a 100644
--- a/js/libtextsecure.js
+++ b/js/libtextsecure.js
@@ -39476,7 +39476,7 @@ MessageReceiver.prototype = {
 
                     if (fromIndex < 0) {
                         //TODO: This could be indication of a race...
-                        throw new Error("Sender was not a member of the group they were sending from");
+                        console.log("Sender was not a member of the group they were sending from");
                     }
 
                     switch(decrypted.group.type) {
diff --git a/libtextsecure/message_receiver.js b/libtextsecure/message_receiver.js
index d7b8555fb..bf64ea847 100644
--- a/libtextsecure/message_receiver.js
+++ b/libtextsecure/message_receiver.js
@@ -299,7 +299,7 @@ MessageReceiver.prototype = {
 
                     if (fromIndex < 0) {
                         //TODO: This could be indication of a race...
-                        throw new Error("Sender was not a member of the group they were sending from");
+                        console.log("Sender was not a member of the group they were sending from");
                     }
 
                     switch(decrypted.group.type) {