Ctrl-A - Select All shortcut does not work in preview mode for markdown documents (fixes #2113)

src/vs/workbench/browser/parts/editor/iframeEditor.ts

@@ -138,7 +138,7 @@ export class IFrameEditor extends BaseEditor {
 		return [
 			'<script>',
 			'var ignoredKeys = [9 /* tab */, 32 /* space */, 33 /* page up */, 34 /* page down */, 38 /* up */, 40 /* down */];',
-			'var ignoredCtrlCmdKeys = [67 /* c */];',
+			'var ignoredCtrlCmdKeys = [65 /* a */, 67 /* c */];',
 			'window.document.body.addEventListener("keydown", function(event) {',		// Listen to keydown events in the iframe
 			'	try {',
 			'		if (ignoredKeys.some(function(i) { return i === event.keyCode; })) {',

src/vs/workbench/parts/html/browser/htmlPreviewPart.ts

@@ -203,7 +203,7 @@ namespace Integration {
 
 	const scriptSource = [
 		'var ignoredKeys = [32 /* space */, 33 /* page up */, 34 /* page down */, 38 /* up */, 40 /* down */];',
-		'var ignoredCtrlCmdKeys = [67 /* c */];',
+		'var ignoredCtrlCmdKeys = [65 /* a */, 67 /* c */];',
 		'window.document.body.addEventListener("keydown", function(event) {',		// Listen to keydown events in the iframe
 		'	try {',
 		'		if (ignoredKeys.some(function(i) { return i === event.keyCode; })) {',