Update interfaces/html.idl (#15180)

Source: https://github.com/tidoust/reffy-reports/blob/d1f04f3/whatwg/idl/html.idl Build: https://travis-ci.org/tidoust/reffy-reports/builds/486795699
web-platform-tests · Jan 31, 2019 · 09c7c72 · 09c7c72
1 parent 6b32df2
commit 09c7c72
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/interfaces/html.idl b/interfaces/html.idl
@@ -1096,8 +1096,8 @@ interface HTMLCanvasElement : HTMLElement {
 
   RenderingContext? getContext(DOMString contextId, optional any options = null);
 
-  USVString toDataURL(optional DOMString type, optional any quality);
-  void toBlob(BlobCallback _callback, optional DOMString type, optional any quality);
+  USVString toDataURL(optional DOMString type = "image/png", optional any quality);
+  void toBlob(BlobCallback _callback, optional DOMString type = "image/png", optional any quality);
   OffscreenCanvas transferControlToOffscreen();
 };
 
@@ -1357,7 +1357,7 @@ typedef (OffscreenCanvasRenderingContext2D or WebGLRenderingContext or WebGL2Ren
 
 dictionary ImageEncodeOptions {
   DOMString type = "image/png";
-  unrestricted double quality = 1.0;
+  unrestricted double quality;
 };
 
 enum OffscreenRenderingContextId { "2d", "webgl", "webgl2" };