6 files changed, 12 insertions, 5 deletions
diff --git a/ext/bg/js/options.js b/ext/bg/js/options.js
index c76525b9..7d993987 100644
--- a/ext/bg/js/options.js
+++ b/ext/bg/js/options.js
@@ -218,7 +218,8 @@ function optionsSetDefaults(options) {
             autoHideResults: false,
             delay: 20,
             length: 10,
-            modifier: 'shift'
+            modifier: 'shift',
+            deepDomScan: false
         },
 
         dictionaries: {},
diff --git a/ext/bg/js/settings.js b/ext/bg/js/settings.js
index c4eb4842..f5d669b2 100644
--- a/ext/bg/js/settings.js
+++ b/ext/bg/js/settings.js
@@ -47,6 +47,7 @@ async function formRead() {
     optionsNew.scanning.selectText = $('#select-matched-text').prop('checked');
     optionsNew.scanning.alphanumeric = $('#search-alphanumeric').prop('checked');
     optionsNew.scanning.autoHideResults = $('#auto-hide-results').prop('checked');
+    optionsNew.scanning.deepDomScan = $('#deep-dom-scan').prop('checked');
     optionsNew.scanning.delay = parseInt($('#scan-delay').val(), 10);
     optionsNew.scanning.length = parseInt($('#scan-length').val(), 10);
     optionsNew.scanning.modifier = $('#scan-modifier-key').val();
@@ -187,6 +188,7 @@ async function onReady() {
     $('#select-matched-text').prop('checked', options.scanning.selectText);
     $('#search-alphanumeric').prop('checked', options.scanning.alphanumeric);
     $('#auto-hide-results').prop('checked', options.scanning.autoHideResults);
+    $('#deep-dom-scan').prop('checked', options.scanning.deepDomScan);
     $('#scan-delay').val(options.scanning.delay);
     $('#scan-length').val(options.scanning.length);
     $('#scan-modifier-key').val(options.scanning.modifier);
diff --git a/ext/bg/settings.html b/ext/bg/settings.html
index 778dcee0..cc140023 100644
--- a/ext/bg/settings.html
+++ b/ext/bg/settings.html
@@ -192,6 +192,10 @@
                     <label><input type="checkbox" id="auto-hide-results"> Automatically hide results</label>
                 </div>
 
+                <div class="checkbox options-advanced">
+                    <label><input type="checkbox" id="deep-dom-scan"> Deep DOM scan</label>
+                </div>
+
                 <div class="form-group options-advanced">
                     <label for="scan-delay">Scan delay (in milliseconds)</label>
                     <input type="number" min="1" id="scan-delay" class="form-control">
diff --git a/ext/fg/js/document.js b/ext/fg/js/document.js
index 8bb857e7..727bc5d2 100644
--- a/ext/fg/js/document.js
+++ b/ext/fg/js/document.js
@@ -89,7 +89,7 @@ function docImposterCreate(element, isTextarea) {
     return [imposter, container];
 }
 
-function docRangeFromPoint({x, y}) {
+function docRangeFromPoint({x, y}, options) {
     const elements = document.elementsFromPoint(x, y);
     let imposter = null;
     let imposterContainer = null;
@@ -108,7 +108,7 @@ function docRangeFromPoint({x, y}) {
         }
     }
 
-    const range = caretRangeFromPointExt(x, y, elements);
+    const range = caretRangeFromPointExt(x, y, options.scanning.deepDomScan ? elements : []);
     if (range !== null) {
         if (imposter !== null) {
             docSetImposterStyle(imposterContainer.style, 'z-index', '-2147483646');
diff --git a/ext/fg/js/frontend.js b/ext/fg/js/frontend.js
index 5a8d18c1..8a5c48d0 100644
--- a/ext/fg/js/frontend.js
+++ b/ext/fg/js/frontend.js
@@ -285,7 +285,7 @@ class Frontend {
             return;
         }
 
-        const textSource = docRangeFromPoint(point);
+        const textSource = docRangeFromPoint(point, this.options);
         let hideResults = !textSource || !textSource.containsPoint(point);
         let searched = false;
         let success = false;
diff --git a/ext/mixed/js/display.js b/ext/mixed/js/display.js
index 4620e198..ebf56897 100644
--- a/ext/mixed/js/display.js
+++ b/ext/mixed/js/display.js
@@ -80,7 +80,7 @@ class Display {
             const {docRangeFromPoint, docSentenceExtract} = this.dependencies;
 
             const clickedElement = $(e.target);
-            const textSource = docRangeFromPoint({x: e.clientX, y: e.clientY});
+            const textSource = docRangeFromPoint({x: e.clientX, y: e.clientY}, this.options);
             if (textSource === null) {
                 return false;
             }