DS_Store template had FPs on UTF-16 encoded HTML files

http/exposures/files/ds-store-file.yaml

@@ -24,6 +24,12 @@ http:
           - "contains(hex_encode(body), '0000000142756431')"
         condition: or
 
+      - type: dsl
+        negative: true
+        dsl:
+          - "contains(to_lower(body), '\0<\0h\0t\0m\0l')"
+          - "contains(to_lower(body), '\0<\0b\0o\0d\0y')"
+
       - type: dsl
         dsl:
           - 'status_code == 200'
@@ -33,4 +39,3 @@ http:
           - 'contains(to_lower(header), "accept-ranges: bytes")'
           - 'contains(to_lower(header), "octet-stream")'
         condition: or
-# digest: 4b0a00483046022100e615e464074ec8d07c0be8de940efbc09b919955cfae6ace638e5954e87044d1022100daaaef38756c1b860b23164372ab226483f028f9403b0ea61a6a29d53d0035cb:922c64590222798bb761d5b6d8e72950