背景：Azure；Windows Server 2012；IIS 8
首先，这是（已删除）web.config供参考
<rewrite>
<rules>
<rule name="ReverseProxyInboundRule1" stopProcessing="false">
<match url="(.*)" />
<action type="Rewrite" url="https://www.khatam.com/{R:1}" logRewrittenUrl="true" />
<serverVariables>
<set name="HTTP_X_ORIGINAL_ACCEPT_ENCODING" value="{HTTP_ACCEPT_ENCODING}" />
<set name="HTTP_ACCEPT_ENCODING" value="" />
</serverVariables>
</rule>
<rule name="Capture Http Origin Header" enabled="true">
<match url=".*" />
<conditions logicalGrouping="MatchAll" trackAllCaptures="true">
<add input="{HTTP_ORIGIN}" pattern=".+" />
</conditions>
<serverVariables>
<set name="CAPTURED_ORIGIN" value="{C:0}" />
</serverVariables>
<action type="None" />
</rule>
</rules>
<outboundRules>
<clear />
<rule name="ReverseProxyOutboundRule1" preCondition="ResponseIsHtml1">
<match filterByTags="None" pattern="^http(s)?://www.khatam.com/(.*)" />
<conditions logicalGrouping="MatchAll" trackAllCaptures="true" />
<action type="Rewrite" value="http{R:1}://jamuni.pemaish.com.au/{R:2}" />
</rule>
<rule name="Rewrite mundrjatzxera Assets" preCondition="ResponseIsHtml1" enabled="true">
<match filterByTags="None" pattern="^/(mundrjat/zxera/.*)" />
<conditions logicalGrouping="MatchAll" trackAllCaptures="true" />
<action type="Rewrite" value="https://www.khatam.com/{R:1}" />
</rule>
<rule name="Rewrite Source Srcset in Picture Assets" preCondition="ResponseIsHtml1" enabled="true">
<match filterByTags="CustomTags" customTags="Source Srcset in Picture" pattern=",?\/(mundrjat\/zxera\/\S+\s\d+w)" />
<conditions logicalGrouping="MatchAll" trackAllCaptures="true" />
<action type="Rewrite" value="https://www.khatam.com/{R:1}" />
</rule>
<rule name="Rewrite X-Frame-Options" enabled="true" patternSyntax="Wildcard">
<match serverVariable="RESPONSE_X-Frame-Options" pattern="*" />
<conditions logicalGrouping="MatchAll" trackAllCaptures="true" />
<action type="Rewrite" />
</rule>
<rule name="Set-Access-Control-Allow-Origin for known origins" enabled="true">
<match serverVariable="RESPONSE_Access-Control-Allow-Origin" pattern=".+" negate="true" />
<conditions logicalGrouping="MatchAll" trackAllCaptures="true" />
<action type="Rewrite" value="{CAPTURED_ORIGIN}" />
</rule>
<rule name="Restore Accept Encoding" preCondition="Needs to Restore Original Accept Encoding" enabled="true">
<match serverVariable="HTTP_ACCEPT_ENCODING" pattern="^(.*)$" />
<conditions logicalGrouping="MatchAll" trackAllCaptures="true" />
<action type="Rewrite" value="{HTTP_X_ORIGINAL_ACCEPT_ENCODING}" />
</rule>
<preConditions>
<preCondition name="ResponseIsCss">
<add input="{RESPONSE_CONTENT_TYPE}" pattern="^text/css" />
</preCondition>
<preCondition name="ResponseIsHtml1">
<add input="{RESPONSE_CONTENT_TYPE}" pattern="^text/html" />
</preCondition>
<preCondition name="ResponseIsEverything">
<add input="{RESPONSE_CONTENT_TYPE}" pattern="^text/(.+)$" />
</preCondition>
<preCondition name="Needs to Restore Original Accept Encoding">
<add input="{HTTP_X_ORIGINAL_ACCEPT_ENCODING}" pattern=".*" />
</preCondition>
</preConditions>
<customTags>
<tags name="Source Srcset in Picture">
<tag name="source" attribute="srcset" />
</tags>
</customTags>
</outboundRules>
</rewrite>
...
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*" />
</customHeaders>
</httpProtocol>
我们正在为客户反向代理一个网站。代理网站是www.khatam.com。执行代理的服务器是（是的，我会说乌尔都语，虽然说得不是很好。）客户的网站中会有一个 IFRAME，它会通过我们的服务器与 的网站jamuni.pemaish.com.au进行交互。khatam.comjamuni
到目前为止一切顺利：客户能够通过其 IFRAME 运行 khatam 网站中的所有内容。不太好的是，其中一个 CSS 文件中引用了 WOFF 文件，但这些文件无法加载。
在浏览器的 devtools 中（正在渲染 IFRAME）所有 woff 都是红色的，常规标题为
Request URL: https://jamuni.pemaish.com.au/vgera.mukljuga/jugabisbis/mukljuga/khatam/vesael/icomoon.woff
Request Method: GET
Status Code: 500 URL Rewrite Module Error.
Remote Address: XXX.XXX.XXX.XXX:443
Referrer Policy: no-referrer-when-downgrade
我曾尝试编写一条规则来更改 CSS，即
<rule name="Rewrite vgera.mukljuga Assets" preCondition="ResponseIsCss" enabled="true">
<match filterByTags="None" pattern="url\((khatam/vesael/.*?.woff)" />
<conditions logicalGrouping="MatchAll" trackAllCaptures="true" />
<action type="Rewrite" value="url(https://www.khatam.com/vgera.mukljuga/jugabisbis/mukljuga/{R:1}" />
</rule>
但无论指定目标还是中间体，我仍然会收到 500 错误。现在，当我重新阅读这篇文章时，我想知道我是否得到了一个重写的输出，该输出被另一个重写所拾取，从而导致循环或竞争。如果我从上面的常规中获取链接并将其放入浏览器的地址栏中，我会得到一个 woff 文件，表明两个或多个规则之间存在争用。
CSS 规则是相对路径的。以下是其中一条：
@font-face {
font-family: trade-gothic-condensed;
src: url(khatam/vesael/tradegothicltcom-bdcn20-webfont.woff) format("woff");
font-weight: 700;
font-style: normal;
-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
欢迎提出建议。