disabled calls to world.worldCanvas.focus()

in the hope that it prefents projects embedded in iFrames to automaticalls scroll into view

HISTORY.md

@@ -44,6 +44,7 @@
 
 ### 2019-02-26
 * GUI: made "inheritance support" setting hidden
+* Objects: disabled calls to world.worldCanvas.focus()
 
 ### 2019-02-25
 * German translation for animation library

snap.html

@@ -8,7 +8,7 @@
         <script type="text/javascript" src="src/widgets.js?version=2018-10-02"></script>
         <script type="text/javascript" src="src/blocks.js?version=2019-02-21"></script>
         <script type="text/javascript" src="src/threads.js?version=2019-02-19"></script>
-        <script type="text/javascript" src="src/objects.js?version=2019-02-18"></script>
+        <script type="text/javascript" src="src/objects.js?version=2019-02-26"></script>
         <script type="text/javascript" src="src/gui.js?version=2019-02-26"></script>
         <script type="text/javascript" src="src/paint.js?version=2019-02-22"></script>
         <script type="text/javascript" src="src/lists.js?version=2019-02-07"></script>

src/objects.js

@@ -83,7 +83,7 @@ BlockEditorMorph, BlockDialogMorph, PrototypeHatBlockMorph, localize,
 TableMorph, TableFrameMorph, normalizeCanvas, BooleanSlotMorph, HandleMorph,
 AlignmentMorph, Process, XML_Element, VectorPaintEditorMorph*/
 
-modules.objects = '2019-February-18';
+modules.objects = '2019-February-26';
 
 var SpriteMorph;
 var StageMorph;
@@ -6755,7 +6755,7 @@ StageMorph.prototype.step = function () {
     // handle keyboard events
     if (world.keyboardReceiver === null) {
         world.keyboardReceiver = this;
-        world.worldCanvas.focus(); // addresses a Safari 11 bug
+        // world.worldCanvas.focus(); // addresses a Safari 11 bug
     }
     if (world.currentKey === null) {
         this.keyPressed = null;