jQuery签名不适用于IE< = 9 [英] JQuery Signature not working for IE <= 9

问题描述

我正在使用JQuery Singature，并且在上述IE版本中遇到此错误消息:

I am using JQuery Singature and I encountered this Error Message for above IE version:

Message: Canvas element does not support 2d context. jSignature cannot proceed.

update:在flashcanvas.js中添加(;)

update : After Added the (;) in the flashcanvas.js

问题是相同的:

消息:应为';'
flashcanvas.swf

Message: Expected ';'
flashcanvas.swf

Code: 0

我从以下位置下载了flashcanvas.swf和flashcanvas.js:

I have downloaded the flashcanvas.swf and flashcanvas.js from:

https://github.com/brinley/jSignature/blob/master/libs/flashcanvas.js https://github.com/brinley/jSignature/blob/master/libs/flashcanvas.swf

这两个文件我将它们放在一个名为Script的文件夹中.

these two files I placed them in a Folder called Script.

是否包含flashcanvas.swf没关系，我需要做什么?

It does not matter if I include or did not include flashcanvas.swf What I need to do?

此处是javascript

here the javascript

 <!--[if lte IE 9]>
  <script type="text/javascript" src="Script/flashcanvas.js"></script>  
  <script type="text/javascript" src="Script/flashcanvas.swf"></script> 
<![endif]-->  

<script type="text/javascript" src="Script/jSignature.js"></script>   

<script type="text/javascript">

    $(document).ready(function (){
    $("#divSignature").jSignature({width:400, height:140, mousedown:function(){}});
    });

</script>

推荐答案

只是语法错误，只需在flashcanvas.js的第928行更新以下内容即可:

Just a syntax error, simply update the following at line 928 of flashcanvas.js:

function getSwfUrl(window) {
    return ( (window[FLASH_CANVAS + "Options"] || {})["swfPath"] || BASE_URL ) + "flashcanvas.swf"; //Added semicolon
}

IE往往对Javascript错误不太宽容，这对于学习该语言的程序员而言可能是一件好事.像Chrome这样的浏览器可以容纳很多JS错误，并且仍然可以正确执行脚本.

IE tend to be less lenient towards Javascript errors, which can be a good thing for programmers learning the language. Browsers like Chrome can accommodate a fair amount of JS errors and still correctly execute a script.

这篇关于jQuery签名不适用于IE< = 9的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！