From 0a7187077da333871680fd9c1d2175050e2691d6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Laban?= <jerome.laban@nventive.com>
Date: Thu, 23 May 2019 08:21:04 -0400
Subject: [PATCH] Fix wasm IIS support

---
 src/Calculator.Wasm/wwwroot/web.config | 78 ++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 src/Calculator.Wasm/wwwroot/web.config

diff --git a/src/Calculator.Wasm/wwwroot/web.config b/src/Calculator.Wasm/wwwroot/web.config
new file mode 100644
index 00000000..0b041e91
--- /dev/null
+++ b/src/Calculator.Wasm/wwwroot/web.config
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <system.web>
+    <customErrors mode="Off"/>
+  </system.web>
+
+  <system.webServer>
+
+    <!-- Disable compression as we're doing it throuh pre-compressed files -->
+    <urlCompression doStaticCompression="false" doDynamicCompression="false" dynamicCompressionBeforeCache="false" />
+
+    <staticContent>
+      <remove fileExtension=".dll" />
+      <remove fileExtension=".wasm" />
+      <remove fileExtension=".woff" />
+      <remove fileExtension=".woff2" />
+      <mimeMap fileExtension=".wasm" mimeType="application/wasm" />
+      <mimeMap fileExtension=".clr" mimeType="application/octet-stream" />
+      <mimeMap fileExtension=".pdb" mimeType="application/octet-stream" />
+      <mimeMap fileExtension=".woff" mimeType="application/font-woff" />
+      <mimeMap fileExtension=".woff2" mimeType="application/font-woff" />
+
+      <!-- Required for PWAs -->
+      <mimeMap fileExtension=".json" mimeType="application/octet-stream" />
+    </staticContent>
+
+    <rewrite>
+      <rules>
+        <rule name="Lookup for pre-compressed brotli file" stopProcessing="true">
+          <match url="(.*)$"/>
+          <conditions>
+            <!-- Match brotli requests -->
+            <add input="{HTTP_ACCEPT_ENCODING}" pattern="br" />
+            
+            <!-- Match all but pre-compressed files -->
+            <add input="{REQUEST_URI}" pattern="^(?!/_compressed_br/)(.*)$" />
+
+            <!-- Check if the pre-compressed file exists on the disk -->
+            <add input="{DOCUMENT_ROOT}/_compressed_br/{C:0}" matchType="IsFile" negate="false" />
+          </conditions>
+          <action type="Rewrite" url="/_compressed_br{C:0}" />
+        </rule>
+
+        <rule name="Lookup for pre-compressed gzip file" stopProcessing="true">
+          <match url="(.*)$"/>
+          <conditions>
+            <!-- Match gzip requests -->
+            <add input="{HTTP_ACCEPT_ENCODING}" pattern="gzip" />
+            
+            <!-- Match all but pre-compressed files -->
+            <add input="{REQUEST_URI}" pattern="^(?!/_compressed_gz/)(.*)$" />
+            
+            <!-- Check if the pre-compressed file exists on the disk -->
+            <add input="{DOCUMENT_ROOT}/_compressed_gz/{C:0}" matchType="IsFile" negate="false" />
+          </conditions>
+          <action type="Rewrite" url="/_compressed_gz{C:0}" />
+        </rule>
+      </rules>
+
+      <outboundRules>
+        <rule name="Adjust content encoding for gzip pre-compressed files" enabled="true" stopProcessing="true">
+          <match serverVariable="RESPONSE_CONTENT_ENCODING" pattern="" />
+          <conditions>
+            <add input="{REQUEST_URI}" pattern="/_compressed_gz/.*$" />
+          </conditions>
+          <action type="Rewrite" value="gzip"/>
+        </rule>
+        <rule name="Adjust content encoding for brotli pre-compressed files" enabled="true" stopProcessing="true">
+          <match serverVariable="RESPONSE_CONTENT_ENCODING" pattern="" />
+          <conditions>
+            <add input="{REQUEST_URI}" pattern="/_compressed_br/.*$" />
+          </conditions>
+          <action type="Rewrite" value="br"/>
+        </rule>
+      </outboundRules>
+    </rewrite>
+  </system.webServer>
+</configuration>