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-rw-r--r--lib/letter-avatars.js4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/letter-avatars.js b/lib/letter-avatars.js
index 53fa011a..55cf9c3a 100644
--- a/lib/letter-avatars.js
+++ b/lib/letter-avatars.js
@@ -27,6 +27,10 @@ exports.generateAvatar = function (name) {
exports.generateAvatarURL = function (name, email = '', big = true) {
let photo
+ if (typeof email !== 'string') {
+ email = '' + name + '@example.com'
+ }
+
if (email !== '' && config.allowGravatar) {
photo = 'https://www.gravatar.com/avatar/' + md5(email.toLowerCase())
if (big) {