diff --git a/ext/fg/js/document.js b/ext/fg/js/document.js
index 60b1b9bd..f2459197 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}, options) {
+function docRangeFromPoint(x, y, options) {
     const elements = document.elementsFromPoint(x, y);
     let imposter = null;
     let imposterContainer = null;
diff --git a/ext/fg/js/frontend.js b/ext/fg/js/frontend.js
index 9341e492..a6919b37 100644
--- a/ext/fg/js/frontend.js
+++ b/ext/fg/js/frontend.js
@@ -104,7 +104,7 @@ class Frontend {
 
         const search = async () => {
             try {
-                await this.searchAt({x: e.clientX, y: e.clientY}, 'mouse');
+                await this.searchAt(e.clientX, e.clientY, 'mouse');
             } catch (e) {
                 this.onError(e);
             }
@@ -280,12 +280,12 @@ class Frontend {
         }
     }
 
-    async searchAt(point, type) {
-        if (this.pendingLookup || await this.popup.containsPoint(point)) {
+    async searchAt(x, y, type) {
+        if (this.pendingLookup || await this.popup.containsPoint(x, y)) {
             return;
         }
 
-        const textSource = docRangeFromPoint(point, this.options);
+        const textSource = docRangeFromPoint(x, y, this.options);
         let hideResults = textSource === null;
         let searched = false;
         let success = false;
@@ -470,7 +470,7 @@ class Frontend {
 
         const search = async () => {
             try {
-                await this.searchAt({x, y}, type);
+                await this.searchAt(x, y, type);
             } catch (e) {
                 this.onError(e);
             }
diff --git a/ext/fg/js/popup-proxy-host.js b/ext/fg/js/popup-proxy-host.js
index 041900ed..47f49b8d 100644
--- a/ext/fg/js/popup-proxy-host.js
+++ b/ext/fg/js/popup-proxy-host.js
@@ -42,7 +42,7 @@ class PopupProxyHost {
             showOrphaned: ({id, elementRect, options}) => this.show(id, elementRect, options),
             hide: ({id}) => this.hide(id),
             setVisible: ({id, visible}) => this.setVisible(id, visible),
-            containsPoint: ({id, point}) => this.containsPoint(id, point),
+            containsPoint: ({id, x, y}) => this.containsPoint(id, x, y),
             termsShow: ({id, elementRect, writingMode, definitions, options, context}) => this.termsShow(id, elementRect, writingMode, definitions, options, context),
             kanjiShow: ({id, elementRect, writingMode, definitions, options, context}) => this.kanjiShow(id, elementRect, writingMode, definitions, options, context),
             clearAutoPlayTimer: ({id}) => this.clearAutoPlayTimer(id)
@@ -108,9 +108,9 @@ class PopupProxyHost {
         return popup.setVisible(visible);
     }
 
-    async containsPoint(id, point) {
+    async containsPoint(id, x, y) {
         const popup = this.getPopup(id);
-        return await popup.containsPoint(point);
+        return await popup.containsPoint(x, y);
     }
 
     async termsShow(id, elementRect, writingMode, definitions, options, context) {
diff --git a/ext/fg/js/popup-proxy.js b/ext/fg/js/popup-proxy.js
index c3a7bff0..f04e24e0 100644
--- a/ext/fg/js/popup-proxy.js
+++ b/ext/fg/js/popup-proxy.js
@@ -69,11 +69,11 @@ class PopupProxy {
         return await this.invokeHostApi('setVisible', {id, visible});
     }
 
-    async containsPoint(point) {
+    async containsPoint(x, y) {
         if (this.id === null) {
             return false;
         }
-        return await this.invokeHostApi('containsPoint', {id: this.id, point});
+        return await this.invokeHostApi('containsPoint', {id: this.id, x, y});
     }
 
     async termsShow(elementRect, writingMode, definitions, options, context) {
diff --git a/ext/fg/js/popup.js b/ext/fg/js/popup.js
index 1b15977b..1d6fa5b3 100644
--- a/ext/fg/js/popup.js
+++ b/ext/fg/js/popup.js
@@ -251,7 +251,7 @@ class Popup {
         }
     }
 
-    async containsPoint({x, y}) {
+    async containsPoint(x, y) {
         for (let popup = this; popup !== null && popup.isVisible(); popup = popup.child) {
             const rect = popup.container.getBoundingClientRect();
             if (x >= rect.left && y >= rect.top && x < rect.right && y < rect.bottom) {
diff --git a/ext/mixed/js/display.js b/ext/mixed/js/display.js
index eca67b5e..ca1738a6 100644
--- a/ext/mixed/js/display.js
+++ b/ext/mixed/js/display.js
@@ -81,7 +81,7 @@ class Display {
             const {docRangeFromPoint, docSentenceExtract} = this.dependencies;
 
             const clickedElement = $(e.target);
-            const textSource = docRangeFromPoint({x: e.clientX, y: e.clientY}, this.options);
+            const textSource = docRangeFromPoint(e.clientX, e.clientY, this.options);
             if (textSource === null) {
                 return false;
             }