DevTools: Preview of .svg file is not seen in Network section of dev tools.

Source/devtools/front_end/network/xmlView.css

 /*
  * Copyright (c) 2014 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 .shadow-xml-view {
     -webkit-user-select: text;
     overflow: auto;
     padding: 2px 4px;
 }
 
 .shadow-xml-view ol {
     list-style: none;
     padding: 0;
     margin: 0;
-    -webkit-padding-start: 16px; /* step width + arrow width */
+    -webkit-padding-start: 16px;/* step width + arrow width */
 }
 
 .shadow-xml-view > ol {
     -webkit-padding-start: 0;
 }
 
 .shadow-xml-view ol.children:not(.expanded) {
     display: none;
 }
 
-.shadow-xml-view li {
-  display: flex;
-  align-items: center;
-}
-
 .shadow-xml-view li.parent::before {
-  -webkit-user-select: none;
-  -webkit-mask-image: url(Images/toolbarButtonGlyphs.png);
-  -webkit-mask-size: 352px 144px;
-  -webkit-mask-position: -4px -97px;
-  background-color: rgb(110, 110, 110);
-  content: "";
-  width: 10px; /* arrow width */
-  height: 10px;
+    -webkit-user-select: none;
+    -webkit-mask-image: url(Images/toolbarButtonGlyphs.png);
+    -webkit-mask-size: 352px 144px;
+    -webkit-mask-position: -4px -97px;
+    background-color: rgb(110, 110, 110);
+    content: " ";
+    width: 10px;/* arrow width */
+    height: 10px;
+    display: inline-block;
+    position: relative;
+    top: 2px;
 }
 
 .shadow-xml-view li.parent.expanded::before {
   -webkit-mask-position: -20px -97px;
 }
 
 @media (-webkit-min-device-pixel-ratio: 1.5) {
 .shadow-xml-view li.parent::before {
     -webkit-mask-image: url(Images/toolbarButtonGlyphs_2x.png);
 }
@@ skipping 28 matching lines @@
 }
 
 .shadow-xml-view-text {
     color: rgb(0, 0, 0);
     white-space: pre;
 }
 
 .shadow-xml-view-cdata {
     color: rgb(0, 0, 0);
 }