无法在 Internet Explorer 8 中显示 SVG 图表
我使用 ReportEngine API 制作了一个运行并呈现 BIRT 报告的 servlet。
唯一的问题是 SVG 图像（图表）不会在 Internet Explorer 8 或 7 中显示。在运行官方 BirtViewer Web 应用程序时，它们也会在 IE8 下显示。 我查看了 BirtViewer 生成的 HTML 并注意到了这个元标记：
<!-- Mimics Internet Explorer 7, it just works on IE8. -->
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7">
因此我尝试将其手动添加到我自己生成的 HTML 中，但没有任何更改。我还尝试通过 servlet（这是常规方式）添加它，
response.setHeader("X-UA-Compatible", "IE=EmulateIE7");
在 setContentType 指令之后立即写入：，但它甚至没有输出元标记...
编辑：这是 BirtViewer 官方 web 应用程序生成的 HTML（我清理了此处不感兴趣的部分）：
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
<html>
<head>
<title>BIRT Report Viewer</title>
<base href="http://192.168.81.92:5080/BirtViewer/webcontent/birt">
<!-- Mimics Internet Explorer 7, it just works on IE8. -->
<meta content="IE=EmulateIE7" http-equiv="X-UA-Compatible">
<meta content="text/html; CHARSET=utf-8" http-equiv="Content-Type">
<!-- a lot of scripts -->
</head>
<body class="BirtViewer_Body" style="overflow: hidden; direction: ltr"
leftmargin="0px" scroll="no" onload="javascript:init( );">
<!-- Header section -->
<table id="layout" cellspacing="0" cellpadding="0"
style="width: 100%; height: 100%">
<tbody>
<tr valign="top">
<td id="reportdialog" style="width: 0%; vertical-align: top">
<div id="exceptionDialog" class="dialogBorder"
style="display: none; position: absolute; z-index: 220; top: 0px; left: 0px;">
<iframe id="exceptionDialogiframe" frameborder="0" scrolling="no"
src="birt/pages/common/blank.html"
style="z-index: -1; display: none; left: 0px; top: 0px; background-color: #ff0000; opacity: .0; filter: alpha(opacity = 0); position: absolute;"
name="exceptionDialogiframe">
<html>
<head></head>
<body></body>
</html>
</iframe>
<div id="exceptionDialogdialogTitleBar"
class="dialogTitleBar dTitleBar">
<div class="dTitleTextContainer">
<table style="width: 100%; height: 100%;">
<tbody>
<tr>
<td class="dialogTitleText dTitleText">Exception</td>
</tr>
</tbody>
</table>
</div>
<div class="dialogCloseBtnContainer dCloseBtnContainer">
<table style="width: 100%; height: 100%; border-collapse: collapse">
<tbody>
<tr>
<td><label class="birtviewer_hidden_label"
for="exceptionDialogdialogCloseBtn"> Close </label>
<div id="exceptionDialogdialogCloseBtn"
class="dialogCloseBtn dCloseBtn"></div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<!-- overflow is set as workaround for Mozilla bug https://bugzilla.mozilla.org/show_bug.cgi?id=167801 -->
<div class="dialogBackground" style="overflow: auto;">
<div class="dBackground">
<div id="exceptionDialogdialogContentContainer"
class="dialogContentContainer">
<table class="birtviewer_dialog_body" cellspacing="2" cellpadding="2">
<tbody>
<tr>
<td class="birtviewer_exception_dialog">
<table cellspacing="2" cellpadding="2">
<tbody>
<tr>
<td valign="top"><img src="birt/images/Error.gif"></td>
<td>
<table class="birtviewer_exception_dialog_container"
cellspacing="2" cellpadding="4">
<tbody>
<tr>
<td>
<div id="faultStringContainer"
class="birtviewer_exception_dialog_message"
style="width: 520px; overflow: auto;"><b> <span
id="faultstring"></span> <b> </b> </b></div>
<b> <b> </b> </b></td>
</tr>
<tr>
<td>
<div id="showTraceLabel"
class="birtviewer_exception_dialog_label" tabindex="0">
Show Exception Stack Trace</div>
<div id="hideTraceLabel"
class="birtviewer_exception_dialog_label"
style="display: none" tabindex="0">Hide Exception
Stack Trace</div>
</td>
</tr>
<tr>
<td>
<div id="exceptionTraceContainer"
style="display: none; width: 520px;">
<table width="100%">
<tbody>
<tr>
<td>Stack Trace: <br>
</td>
</tr>
<tr>
<td>
<div class="birtviewer_exception_dialog_detail"
style="width: 510px;"><span id="faultdetail"></span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</div>
<div class="dialogBtnBarContainer">
<div>
<div class="dBtnBarDividerTop"></div>
<div class="dBtnBarDividerBottom"></div>
</div>
<div class="dialogBtnBar">
<div id="exceptionDialogdialogCustomButtonContainer"
class="dialogBtnBarButtonContainer">
<div id="exceptionDialogokButton" class="dialogBtnBarButtonEnabled">
<div id="exceptionDialogokButtonLeft"
class="dialogBtnBarButtonLeftBackgroundEnabled"></div>
<div id="exceptionDialogokButtonRight"
class="dialogBtnBarButtonRightBackgroundEnabled"></div>
<input class="dialogBtnBarButtonText dialogBtnBarButtonEnabled"
type="button" title="OK" value="OK"></div>
<div class="dialogBtnBarDivider"></div>
<div id="exceptionDialogcancelButton">
<div class="dialogBtnBarButtonLeftBackgroundEnabled"></div>
<div class="dialogBtnBarButtonRightBackgroundEnabled"></div>
<input class="dialogBtnBarButtonText dialogBtnBarButtonEnabled"
type="button" title="Cancel" value="Cancel"></div>
</div>
</div>
</div>
</div>
</div>
</div>
<div id="parameterDialog" class="dialogBorder"
style="position: absolute; z-index: 201; top: 173px; left: 325.5px; width: 520px; display: none;">
<iframe id="parameterDialogiframe" frameborder="0" scrolling="no"
src="birt/pages/common/blank.html"
style="z-index: -1; display: none; left: 0px; top: 0px; background-color: rgb(255, 0, 0); opacity: 0; position: absolute; width: 522px; height: 429px;"
name="parameterDialogiframe">
<html>
<head></head>
<body></body>
</html>
</iframe>
<div id="parameterDialogdialogTitleBar"
class="dialogTitleBar dTitleBar">
<div class="dTitleTextContainer">
<table style="width: 100%; height: 100%;">
<tbody>
<tr>
<td class="dialogTitleText dTitleText">Parameter</td>
</tr>
</tbody>
</table>
</div>
<div class="dialogCloseBtnContainer dCloseBtnContainer">
<table style="width: 100%; height: 100%; border-collapse: collapse">
<tbody>
<tr>
<td><label class="birtviewer_hidden_label"
for="parameterDialogdialogCloseBtn"> Close </label>
<div id="parameterDialogdialogCloseBtn"
class="dialogCloseBtn dCloseBtn"></div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<!-- overflow is set as workaround for Mozilla bug https://bugzilla.mozilla.org/show_bug.cgi?id=167801 -->
<div class="dialogBackground" style="overflow: auto;">
<div class="dBackground">
<div id="parameterDialogdialogContentContainer"
class="dialogContentContainer" style="width: 500px;">
<div class="birtviewer_parameter_dialog">
<table id="parameter_table" class="birtviewer_dialog_body"
cellspacing="2" cellpadding="2">
<tbody>
<tr valign="top">
<td>
<table style="font-size: 8pt">
<tbody>
<tr height="5px">
<td></td>
</tr>
<tr>
<td colspan="2">Parameters marked with <font color="red">*</font>
are required.</td>
</tr>
<tr>
<td nowrap=""><img title=""
alt="Numero di anni da confrontare"
src="birt/images/parameter.gif"></td>
<td nowrap=""><font title=""> <label
for="Years_selection">Numero di anni da confrontare:</label> </font>
<font color="red"> <label for="Years_selection">*</label>
</font></td>
</tr>
<tr>
<td nowrap=""></td>
<td nowrap="" width="100%"><input id="control_type"
type="HIDDEN" value="select"> <input id="data_type"
type="HIDDEN" value="6"> <input id="Years_value"
type="HIDDEN" name="Years"> <select
id="Years_selection"
class="birtviewer_parameter_dialog_Select"
aria-required="true" birtparametertype="combobox" title="2">
<option title="2" value="2">2</option>
<option title="3" value="3">3</option>
<option title="4" value="4">4</option>
</select> <input id="isRequired" type="HIDDEN" value="true"></td>
</tr>
<tr>
<td nowrap=""><img title="" alt="Codice dell'agente"
src="birt/images/parameter.gif"></td>
<td nowrap=""><font title=""> <label for="Agent">Codice
dell'agente:</label> </font> <font color="red"> <label for="Agent">*</label>
</font></td>
</tr>
<tr>
<td nowrap=""></td>
<td nowrap="" width="100%"><input id="control_type"
type="HIDDEN" value="text"> <input id="data_type"
type="HIDDEN" value="1"> <input id="Agent"
class="BirtViewer_parameter_dialog_Input" type="TEXT"
aria-required="true" value="" title="" name="Agent"> <input
id="Agent_value" type="HIDDEN" value=""> <input
id="Agent_displayText" type="HIDDEN" value=""> <input
id="isRequired" type="HIDDEN" value="true"></td>
</tr>
<tr height="5px">
<td></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
<td>
<div id="birt_hint"
style="font-size: 12px; color: #000000; display: none; position: absolute; z-index: 300; background-color: #F7F7F7; layer-background-color: #0099FF; border: 1px #000000 solid; filter: Alpha(style = 0, opacity = 80, finishOpacity = 100);">
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="dialogBtnBarContainer">
<div>
<div class="dBtnBarDividerTop"></div>
<div class="dBtnBarDividerBottom"></div>
</div>
<div class="dialogBtnBar">
<div id="parameterDialogdialogCustomButtonContainer"
class="dialogBtnBarButtonContainer">
<div id="parameterDialogokButton" class="dialogBtnBarButtonEnabled">
<div id="parameterDialogokButtonLeft"
class="dialogBtnBarButtonLeftBackgroundEnabled"></div>
<div id="parameterDialogokButtonRight"
class="dialogBtnBarButtonRightBackgroundEnabled"></div>
<input class="dialogBtnBarButtonText dialogBtnBarButtonEnabled"
type="button" title="OK" value="OK"></div>
<div class="dialogBtnBarDivider"></div>
<div id="parameterDialogcancelButton">
<div class="dialogBtnBarButtonLeftBackgroundEnabled"></div>
<div class="dialogBtnBarButtonRightBackgroundEnabled"></div>
<input class="dialogBtnBarButtonText dialogBtnBarButtonEnabled"
type="button" title="Cancel" value="Cancel"></div>
</div>
</div>
</div>
</div>
</div>
</div>
</td>
</tr>
<tr valign="top">
<td id="documentView" style="direction: ltr;">
<table cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td style="vertical-align: top;">
<div id="progressBar"
style="position: absolute; z-index: 310; top: 346px; left: 461.5px; display: none;">
<table class="birtviewer_progressbar" cellspacing="10px"
width="250px">
<tbody>
<tr>
<td align="center"><b> Processing, please wait ... </b></td>
</tr>
<tr>
<td align="center"><img alt="Progress Bar Image"
src="birt/images/Loading.gif"></td>
</tr>
<tr>
<td align="center">
<div id="cancelTaskButton" style="display: block;">
<table width="100%">
<tbody>
<tr>
<td align="center"><input
class="birtviewer_progressbar_button" type="BUTTON"
title="Cancel" value="Cancel"></td>
</tr>
</tbody>
</table>
</div>
</td>
</tr>
<input id="taskid" type="HIDDEN" value="">
</tbody>
</table>
</div>
<div id="display0"
style="display: none; width: 250px; position: relative; overflow: auto">
</div>
</td>
<td style="vertical-align: top;">
<div id="Document" class="birtviewer_document_fragment"
style="width: 1167px; height: 535px;">
<div>
<div class="style_0">
<table cellpadding="0"
style="empty-cells: show; width: 8in; overflow: hidden; table-layout: fixed;"
rule="none">
<colgroup>
<col>
</colgroup>
<tbody>
<tr>
<td></td>
</tr>
<tr>
<td valign="top">
<div id="AUTOGENBOOKMARK_1" class="style_4"
style="text-align: center;">Analisi per modello</div>
<table id="__bookmark_2" class="style_5"
style="border-collapse: collapse; empty-cells: show; width: 100%; overflow: hidden; table-layout: fixed;">
<colgroup>
<col style="width: 20%;">
<col style="width: 14%;">
<col style="width: 14%;">
<col style="width: 15%;">
<col style="width: 10%;">
</colgroup>
<tbody>
<tr class="style_6" align="center" valign="top">
<th class="style_7" style="overflow: hidden;">
<div id="AUTOGENBOOKMARK_2" style="text-align: left;">Modello</div>
</th>
<th class="style_7" style="overflow: hidden;">
<div>2010</div>
</th>
<th class="style_7" style="overflow: hidden;">
<div>2011</div>
</th>
<th class="style_7" style="overflow: hidden;" colspan="2">
<div>Diff. 2011-2010</div>
</th>
</tr>
<!-- various rows in the table..... -->
</tbody>
</table>
<div><embed id="__bookmark_3"
style="width: 558pt; height: 223.5pt; display: block;" alt=""
src="/BirtViewer/preview?__sessionId=20110523_145951_765&__imageid=custombf791612fc98d919920.svg"
type="image/svg+xml"
onresize="document.getElementById('__bookmark_3').reload()">
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink" height="298"
initialHeight="298.0" initialWidth="744.0"
onload="resizeSVG(evt)" onresize="resizeSVG(evt)" width="744">
<g id="outerG" style="fill:none;stroke:none"
transform="scale(1)">
</svg>
<!-- SVG image details..... -->
</embed></div>
</td>
</tr>
<tr>
<td>
<div>23/mag/2011 14.59</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<div id="Mask"
style="position: absolute; top: 0px; left: 0px; width: 1173px; height: 537px; z-index: 200; background-color: rgb(0, 68, 255); opacity: 0; display: none;"></div>
<div
style="position: absolute; top: 0px; left: 0px; width: 1173px; height: 537px; z-index: 200; background-color: rgb(255, 0, 0); opacity: 0; display: none; cursor: move;"></div>
<iframe scrolling="no" src="birt/pages/common/blank.html"
style="position: absolute; top: 0px; left: 0px; width: 100%; height: 775px; z-index: 300; background-color: rgb(219, 228, 238); opacity: 0; display: none;"
marginheight="0px" marginwidth="0px">
<html>
<head></head>
<body></body>
</html>
</iframe>
</body>
</html>
有什么建议吗？非常感谢！
I made a servlet that runs and renders a BIRT report, using ReportEngine API.
The only problem is that SVG images (charts) are not shown in Internet Explorer 8 or 7. While running the official BirtViewer webapp they are shown under IE8 too.
I peeked into BirtViewer resulting HTML and noticed this meta tag:
<!-- Mimics Internet Explorer 7, it just works on IE8. -->
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7">
So I tried adding it by hand in my own resulting HTML, but with no changes. I also tried adding it through the servlet (which is the regular way) writing:
response.setHeader("X-UA-Compatible", "IE=EmulateIE7");
immediately after the setContentType instruction, but it not even outputted the meta tag...
EDIT: here is resulting HTML from BirtViewer official webapp (I cleaned up the parts with no interest here):
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
<html>
<head>
<title>BIRT Report Viewer</title>
<base href="http://192.168.81.92:5080/BirtViewer/webcontent/birt">
<!-- Mimics Internet Explorer 7, it just works on IE8. -->
<meta content="IE=EmulateIE7" http-equiv="X-UA-Compatible">
<meta content="text/html; CHARSET=utf-8" http-equiv="Content-Type">
<!-- a lot of scripts -->
</head>
<body class="BirtViewer_Body" style="overflow: hidden; direction: ltr"
leftmargin="0px" scroll="no" onload="javascript:init( );">
<!-- Header section -->
<table id="layout" cellspacing="0" cellpadding="0"
style="width: 100%; height: 100%">
<tbody>
<tr valign="top">
<td id="reportdialog" style="width: 0%; vertical-align: top">
<div id="exceptionDialog" class="dialogBorder"
style="display: none; position: absolute; z-index: 220; top: 0px; left: 0px;">
<iframe id="exceptionDialogiframe" frameborder="0" scrolling="no"
src="birt/pages/common/blank.html"
style="z-index: -1; display: none; left: 0px; top: 0px; background-color: #ff0000; opacity: .0; filter: alpha(opacity = 0); position: absolute;"
name="exceptionDialogiframe">
<html>
<head></head>
<body></body>
</html>
</iframe>
<div id="exceptionDialogdialogTitleBar"
class="dialogTitleBar dTitleBar">
<div class="dTitleTextContainer">
<table style="width: 100%; height: 100%;">
<tbody>
<tr>
<td class="dialogTitleText dTitleText">Exception</td>
</tr>
</tbody>
</table>
</div>
<div class="dialogCloseBtnContainer dCloseBtnContainer">
<table style="width: 100%; height: 100%; border-collapse: collapse">
<tbody>
<tr>
<td><label class="birtviewer_hidden_label"
for="exceptionDialogdialogCloseBtn"> Close </label>
<div id="exceptionDialogdialogCloseBtn"
class="dialogCloseBtn dCloseBtn"></div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<!-- overflow is set as workaround for Mozilla bug https://bugzilla.mozilla.org/show_bug.cgi?id=167801 -->
<div class="dialogBackground" style="overflow: auto;">
<div class="dBackground">
<div id="exceptionDialogdialogContentContainer"
class="dialogContentContainer">
<table class="birtviewer_dialog_body" cellspacing="2" cellpadding="2">
<tbody>
<tr>
<td class="birtviewer_exception_dialog">
<table cellspacing="2" cellpadding="2">
<tbody>
<tr>
<td valign="top"><img src="birt/images/Error.gif"></td>
<td>
<table class="birtviewer_exception_dialog_container"
cellspacing="2" cellpadding="4">
<tbody>
<tr>
<td>
<div id="faultStringContainer"
class="birtviewer_exception_dialog_message"
style="width: 520px; overflow: auto;"><b> <span
id="faultstring"></span> <b> </b> </b></div>
<b> <b> </b> </b></td>
</tr>
<tr>
<td>
<div id="showTraceLabel"
class="birtviewer_exception_dialog_label" tabindex="0">
Show Exception Stack Trace</div>
<div id="hideTraceLabel"
class="birtviewer_exception_dialog_label"
style="display: none" tabindex="0">Hide Exception
Stack Trace</div>
</td>
</tr>
<tr>
<td>
<div id="exceptionTraceContainer"
style="display: none; width: 520px;">
<table width="100%">
<tbody>
<tr>
<td>Stack Trace: <br>
</td>
</tr>
<tr>
<td>
<div class="birtviewer_exception_dialog_detail"
style="width: 510px;"><span id="faultdetail"></span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</div>
<div class="dialogBtnBarContainer">
<div>
<div class="dBtnBarDividerTop"></div>
<div class="dBtnBarDividerBottom"></div>
</div>
<div class="dialogBtnBar">
<div id="exceptionDialogdialogCustomButtonContainer"
class="dialogBtnBarButtonContainer">
<div id="exceptionDialogokButton" class="dialogBtnBarButtonEnabled">
<div id="exceptionDialogokButtonLeft"
class="dialogBtnBarButtonLeftBackgroundEnabled"></div>
<div id="exceptionDialogokButtonRight"
class="dialogBtnBarButtonRightBackgroundEnabled"></div>
<input class="dialogBtnBarButtonText dialogBtnBarButtonEnabled"
type="button" title="OK" value="OK"></div>
<div class="dialogBtnBarDivider"></div>
<div id="exceptionDialogcancelButton">
<div class="dialogBtnBarButtonLeftBackgroundEnabled"></div>
<div class="dialogBtnBarButtonRightBackgroundEnabled"></div>
<input class="dialogBtnBarButtonText dialogBtnBarButtonEnabled"
type="button" title="Cancel" value="Cancel"></div>
</div>
</div>
</div>
</div>
</div>
</div>
<div id="parameterDialog" class="dialogBorder"
style="position: absolute; z-index: 201; top: 173px; left: 325.5px; width: 520px; display: none;">
<iframe id="parameterDialogiframe" frameborder="0" scrolling="no"
src="birt/pages/common/blank.html"
style="z-index: -1; display: none; left: 0px; top: 0px; background-color: rgb(255, 0, 0); opacity: 0; position: absolute; width: 522px; height: 429px;"
name="parameterDialogiframe">
<html>
<head></head>
<body></body>
</html>
</iframe>
<div id="parameterDialogdialogTitleBar"
class="dialogTitleBar dTitleBar">
<div class="dTitleTextContainer">
<table style="width: 100%; height: 100%;">
<tbody>
<tr>
<td class="dialogTitleText dTitleText">Parameter</td>
</tr>
</tbody>
</table>
</div>
<div class="dialogCloseBtnContainer dCloseBtnContainer">
<table style="width: 100%; height: 100%; border-collapse: collapse">
<tbody>
<tr>
<td><label class="birtviewer_hidden_label"
for="parameterDialogdialogCloseBtn"> Close </label>
<div id="parameterDialogdialogCloseBtn"
class="dialogCloseBtn dCloseBtn"></div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<!-- overflow is set as workaround for Mozilla bug https://bugzilla.mozilla.org/show_bug.cgi?id=167801 -->
<div class="dialogBackground" style="overflow: auto;">
<div class="dBackground">
<div id="parameterDialogdialogContentContainer"
class="dialogContentContainer" style="width: 500px;">
<div class="birtviewer_parameter_dialog">
<table id="parameter_table" class="birtviewer_dialog_body"
cellspacing="2" cellpadding="2">
<tbody>
<tr valign="top">
<td>
<table style="font-size: 8pt">
<tbody>
<tr height="5px">
<td></td>
</tr>
<tr>
<td colspan="2">Parameters marked with <font color="red">*</font>
are required.</td>
</tr>
<tr>
<td nowrap=""><img title=""
alt="Numero di anni da confrontare"
src="birt/images/parameter.gif"></td>
<td nowrap=""><font title=""> <label
for="Years_selection">Numero di anni da confrontare:</label> </font>
<font color="red"> <label for="Years_selection">*</label>
</font></td>
</tr>
<tr>
<td nowrap=""></td>
<td nowrap="" width="100%"><input id="control_type"
type="HIDDEN" value="select"> <input id="data_type"
type="HIDDEN" value="6"> <input id="Years_value"
type="HIDDEN" name="Years"> <select
id="Years_selection"
class="birtviewer_parameter_dialog_Select"
aria-required="true" birtparametertype="combobox" title="2">
<option title="2" value="2">2</option>
<option title="3" value="3">3</option>
<option title="4" value="4">4</option>
</select> <input id="isRequired" type="HIDDEN" value="true"></td>
</tr>
<tr>
<td nowrap=""><img title="" alt="Codice dell'agente"
src="birt/images/parameter.gif"></td>
<td nowrap=""><font title=""> <label for="Agent">Codice
dell'agente:</label> </font> <font color="red"> <label for="Agent">*</label>
</font></td>
</tr>
<tr>
<td nowrap=""></td>
<td nowrap="" width="100%"><input id="control_type"
type="HIDDEN" value="text"> <input id="data_type"
type="HIDDEN" value="1"> <input id="Agent"
class="BirtViewer_parameter_dialog_Input" type="TEXT"
aria-required="true" value="" title="" name="Agent"> <input
id="Agent_value" type="HIDDEN" value=""> <input
id="Agent_displayText" type="HIDDEN" value=""> <input
id="isRequired" type="HIDDEN" value="true"></td>
</tr>
<tr height="5px">
<td></td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
<td>
<div id="birt_hint"
style="font-size: 12px; color: #000000; display: none; position: absolute; z-index: 300; background-color: #F7F7F7; layer-background-color: #0099FF; border: 1px #000000 solid; filter: Alpha(style = 0, opacity = 80, finishOpacity = 100);">
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="dialogBtnBarContainer">
<div>
<div class="dBtnBarDividerTop"></div>
<div class="dBtnBarDividerBottom"></div>
</div>
<div class="dialogBtnBar">
<div id="parameterDialogdialogCustomButtonContainer"
class="dialogBtnBarButtonContainer">
<div id="parameterDialogokButton" class="dialogBtnBarButtonEnabled">
<div id="parameterDialogokButtonLeft"
class="dialogBtnBarButtonLeftBackgroundEnabled"></div>
<div id="parameterDialogokButtonRight"
class="dialogBtnBarButtonRightBackgroundEnabled"></div>
<input class="dialogBtnBarButtonText dialogBtnBarButtonEnabled"
type="button" title="OK" value="OK"></div>
<div class="dialogBtnBarDivider"></div>
<div id="parameterDialogcancelButton">
<div class="dialogBtnBarButtonLeftBackgroundEnabled"></div>
<div class="dialogBtnBarButtonRightBackgroundEnabled"></div>
<input class="dialogBtnBarButtonText dialogBtnBarButtonEnabled"
type="button" title="Cancel" value="Cancel"></div>
</div>
</div>
</div>
</div>
</div>
</div>
</td>
</tr>
<tr valign="top">
<td id="documentView" style="direction: ltr;">
<table cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td style="vertical-align: top;">
<div id="progressBar"
style="position: absolute; z-index: 310; top: 346px; left: 461.5px; display: none;">
<table class="birtviewer_progressbar" cellspacing="10px"
width="250px">
<tbody>
<tr>
<td align="center"><b> Processing, please wait ... </b></td>
</tr>
<tr>
<td align="center"><img alt="Progress Bar Image"
src="birt/images/Loading.gif"></td>
</tr>
<tr>
<td align="center">
<div id="cancelTaskButton" style="display: block;">
<table width="100%">
<tbody>
<tr>
<td align="center"><input
class="birtviewer_progressbar_button" type="BUTTON"
title="Cancel" value="Cancel"></td>
</tr>
</tbody>
</table>
</div>
</td>
</tr>
<input id="taskid" type="HIDDEN" value="">
</tbody>
</table>
</div>
<div id="display0"
style="display: none; width: 250px; position: relative; overflow: auto">
</div>
</td>
<td style="vertical-align: top;">
<div id="Document" class="birtviewer_document_fragment"
style="width: 1167px; height: 535px;">
<div>
<div class="style_0">
<table cellpadding="0"
style="empty-cells: show; width: 8in; overflow: hidden; table-layout: fixed;"
rule="none">
<colgroup>
<col>
</colgroup>
<tbody>
<tr>
<td></td>
</tr>
<tr>
<td valign="top">
<div id="AUTOGENBOOKMARK_1" class="style_4"
style="text-align: center;">Analisi per modello</div>
<table id="__bookmark_2" class="style_5"
style="border-collapse: collapse; empty-cells: show; width: 100%; overflow: hidden; table-layout: fixed;">
<colgroup>
<col style="width: 20%;">
<col style="width: 14%;">
<col style="width: 14%;">
<col style="width: 15%;">
<col style="width: 10%;">
</colgroup>
<tbody>
<tr class="style_6" align="center" valign="top">
<th class="style_7" style="overflow: hidden;">
<div id="AUTOGENBOOKMARK_2" style="text-align: left;">Modello</div>
</th>
<th class="style_7" style="overflow: hidden;">
<div>2010</div>
</th>
<th class="style_7" style="overflow: hidden;">
<div>2011</div>
</th>
<th class="style_7" style="overflow: hidden;" colspan="2">
<div>Diff. 2011-2010</div>
</th>
</tr>
<!-- various rows in the table..... -->
</tbody>
</table>
<div><embed id="__bookmark_3"
style="width: 558pt; height: 223.5pt; display: block;" alt=""
src="/BirtViewer/preview?__sessionId=20110523_145951_765&__imageid=custombf791612fc98d919920.svg"
type="image/svg+xml"
onresize="document.getElementById('__bookmark_3').reload()">
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink" height="298"
initialHeight="298.0" initialWidth="744.0"
onload="resizeSVG(evt)" onresize="resizeSVG(evt)" width="744">
<g id="outerG" style="fill:none;stroke:none"
transform="scale(1)">
</svg>
<!-- SVG image details..... -->
</embed></div>
</td>
</tr>
<tr>
<td>
<div>23/mag/2011 14.59</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<div id="Mask"
style="position: absolute; top: 0px; left: 0px; width: 1173px; height: 537px; z-index: 200; background-color: rgb(0, 68, 255); opacity: 0; display: none;"></div>
<div
style="position: absolute; top: 0px; left: 0px; width: 1173px; height: 537px; z-index: 200; background-color: rgb(255, 0, 0); opacity: 0; display: none; cursor: move;"></div>
<iframe scrolling="no" src="birt/pages/common/blank.html"
style="position: absolute; top: 0px; left: 0px; width: 100%; height: 775px; z-index: 300; background-color: rgb(219, 228, 238); opacity: 0; display: none;"
marginheight="0px" marginwidth="0px">
<html>
<head></head>
<body></body>
</html>
</iframe>
</body>
</html>
Any suggestion? Many thanks!
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评论（2）
您发现的
X-UA-Compatible元标记是一个转移注意力的东西；它与 SVG 无关。 IE8 或 IE7 根本不支持 SVG。仅在 IE9 中添加了对 SVG 的支持。您所看到的元标记告诉 IE8（以及 IE9）返回到 IE7 兼容模式。它旨在供为 IE7 编写的网站使用，在这些网站中更新代码以支持 IE8 或 IE9 的工作量太大。我建议尽可能避免使用此元标记，因为它的主要功能是关闭浏览器的某些功能。
回到 SVG 支持……虽然 IE7 和 IE8 不支持 SVG，但它们都支持 VML，VML 也是一种矢量图形标记语言，与 SVG 类似，但特定于 IE。
一些 Javascript 库尝试使用 VML 模拟 SVG，或者使用 VML 作为后备而不是渲染 SVG。我最喜欢的是拉斐尔。
但 Raphael 是一个用于绘制图形的库；既然您已经有了 SVG，您可能会发现一个简单的转换库更有用。也许是这样的：http://code.google.com/p/svg2vml/或者这样：http://code.google.com/p/svgweb/
另一种方法就是使用 Flash 或其他嵌入对象在 IE 中渲染 SVG。
我的猜测是，当您看到他们成功渲染 SVG 时，他们正在使用这些库之一（或另一个类似的库）在 IE7 和 IE8 中显示 SVG 图形。
The
X-UA-Compatiblemeta tag that you've spotted is a red herring; it's not related to SVG. Neither IE8 or IE7 support SVG at all. Support for SVG was only added in IE9.The meta tag you've seen tells IE8 (and IE9 for that matter) to fall back into IE7-compatibility mode. This is intended to be used by sites that were written for IE7, where updating the code to support IE8 or IE9 is too much work. I'd recommend avoiding using this meta tag if at all possible, because it's primary function is to switch off some of the functionality of your browser.
Back to SVG support.... While they don't support SVG, IE7 and IE8 do both support VML, which is also a vector graphics markup language, similar to SVG, but specific to IE.
Some Javascript libraries attempt to emulate SVG using VML, or to use VML as a fall-back instead of rendering SVG. My favourite is Raphael.
But Raphael is a library for drawing the graphics; since you already have the SVG, you may find a simple conversion library is more useful. Something like this, perhaps: http://code.google.com/p/svg2vml/ or this: http://code.google.com/p/svgweb/
The other approach would be to use Flash or other embedded object to render the SVG in IE.
My guess is that where you're seeing them successfully rendering SVG, they are using one of these libraries (or another similar one) to display the SVG graphics in IE7 and IE8.
您可以考虑使用 Ample SDK JavaScript 库，可以在 IE6、7 和 8 中渲染 SVG。
You may consider using Ample SDK JavaScript library that can render SVG in IE6, 7 and 8.