Cannot read properties of undefined (reading '_android')
Author: CyclodexCreated Mar 16, 2023Updated Nov 10, 2024
Hi!
Firstly, thanks for your work on this project!
Today I used patch-package to patch [email protected] for the project I'm working on.
My issue was, after updating to Vue 2.7.13 and @vue/cli 5.0.8 the generated JS code throws an error, because "this" is undefined when running this line:
if (this._android && this._android <= 2.1) {
I think its related to js modules and this is always undefined on global level.
Here is the diff that solved my problem:
diff --git a/node_modules/qrcode-js-package/qrcode.js b/node_modules/qrcode-js-package/qrcode.js
index f89e602..d5e5bd9 100644
--- a/node_modules/qrcode-js-package/qrcode.js
+++ b/node_modules/qrcode-js-package/qrcode.js
@@ -281,7 +281,7 @@ var QRCode;
// Android 2.1 bug workaround
// http://code.google.com/p/android/issues/detail?id=5141
- if (this._android && this._android <= 2.1) {
+ if (this && this._android && this._android <= 2.1) {
var factor = 1 / window.devicePixelRatio;
var drawImage = CanvasRenderingContext2D.prototype.drawImage;
CanvasRenderingContext2D.prototype.drawImage = function (image, sx, sy, sw, sh, dx, dy, dw, dh) {This issue body was partially generated by patch-package.
Source: davidshimjs/qrcodejs