diff --git a/scripts/injection.js b/scripts/injection.js
index c77bf4ef..aaead34d 100644
--- a/scripts/injection.js
+++ b/scripts/injection.js
@@ -722,6 +722,21 @@ let page = realPath === "" ? pages[0] : pages.find(p => (!p.exclude || !p.exclud
         document.querySelector('.t-wrap').remove();
     }
 
+    // viewer.js
+    let touchStartTime = 0;
+    document.addEventListener("touchstart", e => {
+        if(e.target.className !== 'viewer-canvas') return;
+        touchStartTime = Date.now();
+    }, { passive: true });
+    document.addEventListener("touchend", e => {
+        if(e.target.className !== 'viewer-canvas') return;
+        if(Date.now() - touchStartTime < 150) {
+            let viewerContainer = e.target.closest('.viewer-container');
+            viewerContainer.querySelector('.viewer-close').click();
+            console.log('close');
+        }
+    }, { passive: false });
+
     chrome.runtime.sendMessage({
         action: "inject",
         files: [