diff -ur /home/dsnopek/dl/panopoly-7.x-1.44/profiles/panopoly/libraries/tinymce/jscripts/tiny_mce/tiny_mce_src.js tinymce/jscripts/tiny_mce/tiny_mce_src.js
--- /home/dsnopek/dl/panopoly-7.x-1.44/profiles/panopoly/libraries/tinymce/jscripts/tiny_mce/tiny_mce_src.js	2017-04-13 11:14:29.000000000 -0500
+++ tinymce/jscripts/tiny_mce/tiny_mce_src.js	2017-05-09 17:25:24.491081998 -0500
@@ -1317,7 +1317,13 @@
 			// WebKit can't even do simple things like selecting an image
 			// Needs tobe the setBaseAndExtend or it will fail to select floated images
 			if (/^(IMG|HR)$/.test(e.nodeName)) {
-				selection.getSel().setBaseAndExtent(e, 0, e, 1);
+				try {
+					selection.getSel().setBaseAndExtent(e, 0, e, 1);
+				}
+				catch (x) {
+					// On Chrome 58 and up, the above throws an exception. Try this instead.
+					selection.select(e);
+				}
 			}
 
 			if (e.nodeName == 'A' && dom.hasClass(e, 'mceItemAnchor')) {