diff --git a/ui/src/chat.ts b/ui/src/chat.ts
index 3ce6f11112f..4d0bc92c936 100644
--- a/ui/src/chat.ts
+++ b/ui/src/chat.ts
@@ -56,6 +56,7 @@ config({
               whiteList: Object.assign({}, getDefaultWhiteList(), {
                 video: ['src', 'controls', 'width', 'height', 'preload', 'playsinline'],
                 source: ['src', 'type'],
+                a: ['href', 'style'],
                 input: ['class', 'disabled', 'type', 'checked'],
                 sup: ['data-title'],
                 iframe: [
diff --git a/ui/src/main.ts b/ui/src/main.ts
index fd6ea852af0..0ace0737f62 100644
--- a/ui/src/main.ts
+++ b/ui/src/main.ts
@@ -58,6 +58,7 @@ config({
               whiteList: Object.assign({}, getDefaultWhiteList(), {
                 video: ['src', 'controls', 'width', 'height', 'preload', 'playsinline'],
                 source: ['src', 'type'],
+                a: ['href', 'style'],
                 input: ['class', 'disabled', 'type', 'checked'],
                 sup: ['data-title'],
                 iframe: [