diff --git a/packages/markdown/src/template-integration.js b/packages/markdown/src/template-integration.js
index a56df5b16..464d0d765 100755
--- a/packages/markdown/src/template-integration.js
+++ b/packages/markdown/src/template-integration.js
@@ -18,6 +18,8 @@ function mySafeAttrValue(tag, name, value, cssFilter) {
         /^aodroplink:/ig.test(value) ||
         /^onenote:/ig.test(value) ||
         /^file:/ig.test(value) ||
+        /^abasurl:/ig.test(value) ||
+        /^conisio:/ig.test(value) ||
         /^mailspring:/ig.test(value)) {
       return value;
     }