diff --git a/plugin/src/web.ts b/plugin/src/web.ts
index e23456b..edfa2d6 100644
--- a/plugin/src/web.ts
+++ b/plugin/src/web.ts
@@ -66,6 +66,8 @@ export class CapacitorBarcodeScannerWeb
 
     const caposbarcodescannercontainerdialoginnerclose =
       document.createElement("span");
+    caposbarcodescannercontainerdialoginnerclose.id =
+      "cap-os-barcode-scanner-close-button";
     caposbarcodescannercontainerdialoginnerclose.className = "close-button";
     caposbarcodescannercontainerdialoginnerclose.innerHTML = "×";
     caposbarcodescannercontainerdialoginner.appendChild(
@@ -95,9 +97,6 @@ export class CapacitorBarcodeScannerWeb
     caposbarcodescannercontainer.appendChild(
       caposbarcodescannercontainerdialog,
     );
-
-    caposbarcodescannercontainerdialoginnerclose.onclick =
-      this.stopAndHideScanner;
   }
 
   /**
@@ -134,6 +133,19 @@ export class CapacitorBarcodeScannerWeb
         scannerFPS: options.web?.scannerFPS ? options.web.scannerFPS : 50,
       };
 
+      let alreadyCancelled = false;
+      const closeButton = document.getElementById(
+        "cap-os-barcode-scanner-close-button",
+      );
+      if (closeButton) {
+        closeButton.onclick = async () => {
+          if (alreadyCancelled) return;
+          alreadyCancelled = true;
+          await this.stopAndHideScanner();
+          reject(new Error("Couldn’t scan because the process was cancelled."));
+        };
+      }
+
       // Set up and start the scanner
       const scannerElement = document.getElementById(
         "cap-os-barcode-scanner-container-scanner",