Align iframe[sandbox] checking with spec

[gnu-emacs-elpa] / common.rnc

diff --git a/common.rnc b/common.rnc
index 97c09dea79cc16026e2985886e674d11adc78d71..3352fd8e7dfae3b969756fee6f7cf94367b2b8a0 100644 (file)
--- a/common.rnc
+++ b/common.rnc
@@ -394,6 +394,10 @@ common.attrs.other =
        common.data.integrity =
                w:integrity-metadata
 
+## List of sandbox keywords
+       common.data.sandbox-allow-list =
+               w:string "" | w:sandbox-allow-list
+
 ## Microdata Properties
   common.data.microdata-properties =
     list { w:microdata-property+ }