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I have to redirect a full URL from HTTP to HTTPS for an Angular app that needs to be hosted on an IIS server.

I created the following rules, but it is not working, it only works with the main domain (like http://www.somedomain.com, it redirects just fine, but but with http://www.somedomain.com/route

Here are my rules. What am I doing wrong?

<rules> <rule name="HTTP to HTTPS redirect" stopProcessing="true"> <match url="(.*)" /> <conditions> <add input="{HTTPS}" pattern="off" ignoreCase="true" /> </conditions> <action type="Redirect" redirectType="Found" url="https://{HTTP_HOST}/{R:1}" /> </rule> <rule name="Angular Routes" stopProcessing="true"> <match url=".*" /> <conditions logicalGrouping="MatchAll"> <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" /> <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" /> </conditions> <action type="Rewrite" url="./index.html" /> </rule> </rules>

The idea is to redirect http://www.somedomain.com/route/something or http://somedomain.com/route/something to https://www.somedomain.com/route/something

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2 Answers 2

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There are several ways to do the same redirection. If you are using url="https://{HTTP_HOST}/{R:1}" you have to add appendQueryString="true", otherwise URI path will not be appended.

So the config should look like:

<?xml version="1.0" encoding="UTF-8"?> <configuration> <system.webServer> <rewrite> <rules> <rule name="Redirect to HTTPS" enabled="true" stopProcessing="true"> <match url="(.*)" /> <conditions> <add input="{HTTPS}" pattern="^OFF$" /> </conditions> <action type="Redirect" url="https://{HTTP_HOST}/{R:1}" appendQueryString="true" /> </rule> </rules> </rewrite> </system.webServer> </configuration>

But I'm normally using another rule with 301 redirect which is better handled by browsers at some conditions. In such case you have to use another type of uri: url="https://{HTTP_HOST}{REQUEST_URI}"

<configuration> <system.webServer> <rewrite> <rules> <rule name="HTTPS force" enabled="true" stopProcessing="true"> <match url="(.*)" /> <conditions> <add input="{HTTPS}" pattern="^OFF$" /> </conditions> <action type="Redirect" url="https://{HTTP_HOST}{REQUEST_URI}" redirectType="Permanent" /> </rule> </rules> </rewrite> </system.webServer> </configuration>
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  • Both solutions did not work on an Angular App v14. Commented Mar 23, 2023 at 3:11
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you are doing it right, but IIS has its wired cache so sometimes you dont see changes right away, as far as I remember it somehow can survive iisreset. Also, Google Chrome spotted to remember redirects.

So suggestion is to wait a little or reboot both machines (sounds crazy I know)

Here is my working config. Same idea but different condition.

 <rules> <rule name="http to https" stopProcessing="true"> <match url="(.*)" /> <conditions> <add input="{SERVER_PORT}" pattern="443" negate="true" /> <add input="{HTTP_HOST}" pattern="\.local$" negate="true" /> <add input="{URL}" pattern="/robots.txt" negate="true" /> </conditions> <action type="Redirect" url="https://{HTTP_HOST}/{R:1}" /> </rule> </rules>
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  • "IIS has its wired cache", probably you are referring to your browser's cache. Always use private mode of your browser for such testing, and you will discover a brand new world. Commented Dec 17, 2020 at 17:31

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