minmum block size for IE

# readme update
+ minmum block size for IE

Author: ushelp

dist/easy.qrcode.min.js

@@ -1,6 +1,6 @@
 {
 	"name": "easyqrcodejs",
-	"version": "4.4.1",
+	"version": "4.4.2",
 	"description": "Cross-browser QRCode generator for pure javascript. Support Canvas, SVG and Table drawing methods. Support Dot style, Logo, Background image, Colorful, Title etc. settings. Support Angular, Vue.js, React, Next.js, Svelte framework. Support binary(hex) data mode.(Running with DOM on client side)",
 	"main": "dist/easy.qrcode.min.js",
 	"scripts": {},

package.json

@@ -343,8 +343,8 @@ var qrcode = new QRCode(DOM_object, options_object);
 | **logo** | N | String | `undefined` | Logo Image Path or Base64 encoded image. If use relative address, relative to `easy.qrcode.min.js` |    |
 | **logoWidth** | N | Number | `width/3.5` |  Fixed logo width. |    |
 | **logoHeight** | N | Number | `height/3.5` |  fixed logo height. |    |
-| **maxLogoWidth** | N | Number | `undefined` |  Maximum logo width. if set will ignore `logoWidth` value. |    |
-| **maxLogoHeight** | N | Number | `undefined` |  Maximum logo height. if set will ignore `logoHeight` value. |    |
+| **logoMaxWidth** | N | Number | `undefined` |  Maximum logo width. if set will ignore `logoWidth` value. |    |
+| **logoMaxHeight** | N | Number | `undefined` |  Maximum logo height. if set will ignore `logoHeight` value. |    |
 | **logoBackgroundTransparent** | N | Boolean | `false` |  Whether the background transparent image(`PNG`) shows transparency. When `true`, `logoBackgroundColor` is invalid |    |
 | **logoBackgroundColor** | N | String | `#ffffff` |  Set Background CSS Color when image background transparent. Valid when `logoBackgroundTransparent` is `false` |    |
 | Backgroud Image options|  ---|--- |---|---|---|

readme.md

@@ -3,7 +3,7 @@
  * 
  * Cross-browser QRCode generator for pure javascript. Support Canvas, SVG and Table drawing methods. Support Dot style, Logo, Background image, Colorful, Title etc. settings. Support Angular, Vue.js, React, Next.js, Svelte framework. Support binary(hex) data mode.(Running with DOM on client side)
  * 
- * Version 4.4.1
+ * Version 4.4.2
  * 
  * @author [ [email protected] ]
  * 
@@ -1058,6 +1058,12 @@
             var nCount = oQRCode.getModuleCount();
             var nWidth = Math.round(_htOption.width / nCount);
             var nHeight = Math.round((_htOption.height - _htOption.titleHeight) / nCount);
+            if(nWidth<=1){
+                nWidth=1;
+            }
+            if(nHeight<=1){
+                nHeight=1;
+            }
 
             this._htOption.width = nWidth * nCount;
             this._htOption.height = nHeight * nCount + _htOption.titleHeight;
@@ -1426,13 +1432,11 @@
             // var _elImage = this._elImage;
             var _htOption = this._htOption;
 
-
             if (!_htOption.title && !_htOption.subTitle) {
                 _htOption.height -= _htOption.titleHeight;
                 _htOption.titleHeight = 0;
             }
 
-
             var nCount = oQRCode.getModuleCount();
             var nWidth = Math.round(_htOption.width / nCount);
             var nHeight = Math.round((_htOption.height - _htOption.titleHeight) / nCount);