diff --git a/src/static/js/caretPosition.js b/src/static/js/caretPosition.js
index 32f6d919b..dbab99266 100644
--- a/src/static/js/caretPosition.js
+++ b/src/static/js/caretPosition.js
@@ -4,36 +4,33 @@
 // This function is useful to get the caret position of the line as
 // is represented by the browser
 exports.getPosition = () => {
-  let rect, line;
   const range = getSelectionRange();
-  const isSelectionInsideTheEditor = range &&
-      $(range.endContainer).closest('body')[0].id === 'innerdocbody';
+  if (!range || $(range.endContainer).closest('body')[0].id !== 'innerdocbody') return null;
+  let rect, line;
 
-  if (isSelectionInsideTheEditor) {
-    // when we have the caret in an empty line, e.g. a line with only a <br>,
-    // getBoundingClientRect() returns all dimensions value as 0
-    const selectionIsInTheBeginningOfLine = range.endOffset > 0;
-    if (selectionIsInTheBeginningOfLine) {
-      const clonedRange = createSelectionRange(range);
-      line = getPositionOfElementOrSelection(clonedRange);
-      clonedRange.detach();
-    }
+  // when we have the caret in an empty line, e.g. a line with only a <br>,
+  // getBoundingClientRect() returns all dimensions value as 0
+  const selectionIsInTheBeginningOfLine = range.endOffset > 0;
+  if (selectionIsInTheBeginningOfLine) {
+    const clonedRange = createSelectionRange(range);
+    line = getPositionOfElementOrSelection(clonedRange);
+    clonedRange.detach();
+  }
 
-    // when there's a <br> or any element that has no height, we can't get
-    // the dimension of the element where the caret is
-    if (!rect || rect.height === 0) {
-      const clonedRange = createSelectionRange(range);
+  // when there's a <br> or any element that has no height, we can't get
+  // the dimension of the element where the caret is
+  if (!rect || rect.height === 0) {
+    const clonedRange = createSelectionRange(range);
 
-      // as we can't get the element height, we create a text node to get the dimensions
-      // on the position
-      const shadowCaret = $(document.createTextNode('|'));
-      clonedRange.insertNode(shadowCaret[0]);
-      clonedRange.selectNode(shadowCaret[0]);
+    // as we can't get the element height, we create a text node to get the dimensions
+    // on the position
+    const shadowCaret = $(document.createTextNode('|'));
+    clonedRange.insertNode(shadowCaret[0]);
+    clonedRange.selectNode(shadowCaret[0]);
 
-      line = getPositionOfElementOrSelection(clonedRange);
-      clonedRange.detach();
-      shadowCaret.remove();
-    }
+    line = getPositionOfElementOrSelection(clonedRange);
+    clonedRange.detach();
+    shadowCaret.remove();
   }
   return line;
 };