added color contrast rule id

Author: chikara1608

lib/commons/dom/get-visible-child-text-rects.js

@@ -36,7 +36,9 @@ const getVisibleChildTextRects = (node, options = {}) => {
         nodeRect,
         checkTextRectOutsideNodeBoundingRect
       ) &&
-      (!cache.get('ruleId') || cache.get('ruleId') === 'reflow-4x-zoom-scroll')
+      (!cache.get('ruleId') ||
+        cache.get('ruleId') === 'reflow-4x-zoom-scroll' ||
+        cache.get('ruleId') === 'color-contrast')
     ) {
       return;
     }
@@ -52,7 +54,9 @@ const getVisibleChildTextRects = (node, options = {}) => {
   // a11y-engine-domforge change
   if (
     clientRects.length <= 0 &&
-    ((cache.get('ruleId') && cache.get('ruleId') === 'resize-2x-zoom') ||
+    ((cache.get('ruleId') &&
+      (cache.get('ruleId') === 'resize-2x-zoom' ||
+        cache.get('ruleId') === 'color-contrast')) ||
       checkNoVisibleRectsIdentified)
   ) {
     return [];