Safari浏览器中未显示显示图像，但是在IE11中可以正常显示 [英] Display image is not showing up in safari, however in works fine in IE11

问题描述

背景

我目前有一个测试网页，我需要同时在Windows和Mac OS环境下工作.目前，我有一部分代码可以在IE上运行，但是在Mac上进行测试时无法正常工作.

I currently have a test webpage which I will need to work on both Windows and Mac OS environments. Currently I have a block of code which works on IE however when tested on a Mac it does not work.

问题

此代码旨在动态地动态创建以下div，然后使用从呼叫到服务获得的base64结果填充img标签.问题是它从不显示在 safari 中，但它显示在 IE 上.

This code is meant to dynamically create the following div's dynamically and then populate the img tag with the base64 results that I am getting from a call out to a service. The issue is it never displays in safari, however it displays on IE.

代码

$("#listView").kendoPanelBar({
                expandMode: "single",
                select: function (e) {
                var retrievedContent = dataSource._data;
                   for (var x = 0; x < retrievedContent.length; x++) {
                          if (e.item.dataset.uid === retrievedContent[x].uid) {
                           selectedContent = retrievedContent[x];
                 $.when(GetImgB64(selectedContent.ServerRelativeUrl)).done(function (imageB64) {
                       if (imageB64) {
                               var formattedB64 = "data:image/jpeg;base64," + imageB64;
                               $(".destroyWaiting").remove();
                               $(e.item, ".topTabPanel").append('<div class="destroy">&nbsp;&nbsp;Content : <button type="button" class="insertButton k-primary" id="button1" style="border: 2px none; border-radius: 25px; margin-left: 15px; margin-top: 5px;">Insert</button></div>');
                               $(e.item).append('<div class="destroy" style="margin-top: 5px; border: 1px solid darkgray;"><p></p><img class="img-responsive" src="' + formattedB64 + '" /></div>');
                               $(".insertButton").each(function (e) {
                                   $(this).click(function (d) {
                                      insertImages(imageB64);
                                    });
                                 });
                            }                        
                            else {
                                    FeedBackMessage("No Result For Criteria");
                                    }
                                });
                            }
                        }
                    else {
                        $(e.item).find(".destroy").remove();
                    }
                },
                collapse: function (e) {
                    $(e.item).find(".destroy").remove();
                }
            });

推荐答案

Safari要求base64字符串的字符数可被4整除.

Safari requires a base64 string that has a character count divisible by 4.

使用此:

if (imageB64) {

  while (imageB64.length % 4 > 0) {
    imageB64 += '=';
  }

  var formattedB64 = "data:image/jpeg;base64," + imageB64;
  $(".destroyWaiting").remove();
  $(e.item, ".topTabPanel").append('<div class="destroy">&nbsp;&nbsp;Content : <button type="button" class="insertButton k-primary" id="button1" style="border: 2px none; border-radius: 25px; margin-left: 15px; margin-top: 5px;">Insert</button></div>');
  $(e.item).append('<div class="destroy" style="margin-top: 5px; border: 1px solid darkgray;"><p></p><img class="img-responsive" src="' + formattedB64 + '" /></div>');
  $(".insertButton").each(function (e) {
    $(this).click(function (d) {
      insertImages(imageB64);
    });
  });
}

来源:在safari中未显示Base64图像标签

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