Gzip on Azure Webapps - azure

Question

I've a problem with gzip in my Azure Webapps. I'm using Wordpress (my domain is https://www.uc.ac.id) and using Windows OS base for my Webapps.
I can't enable gzip compression in my site. I was tried so many ways to enable it (with add compression on my web.config and application.xdt) but it's not working after i check in https://checkgzipcompression.com, the gzip is not enabled.
Please help me.
There is my web.config
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.web>
<pages enableSessionState="false" />
</system.web>
<system.webServer>
<httpProtocol>
<customHeaders>
<clear />
<remove name="X-Powered-By" />
<add name="X-Frame-Options" value="SAMEORIGIN" />
<add name="X-Xss-Protection" value="1; mode=block" />
<add name="X-Content-Type-Options" value="nosniff" />
<add name="Referrer-Policy" value="no-referrer" />
</customHeaders>
<redirectHeaders>
<clear />
</redirectHeaders>
</httpProtocol>
<security>
<requestFiltering>
<requestLimits maxAllowedContentLength="15000000" />
<denyUrlSequences>
<add sequence="xmlrpc.php" />
</denyUrlSequences>
</requestFiltering>
<dynamicIpSecurity denyAction="Forbidden">
<denyByConcurrentRequests enabled="true" maxConcurrentRequests="10" />
<denyByRequestRate enabled="true" maxRequests="15" requestIntervalInMilliseconds="2000" />
</dynamicIpSecurity>
</security>
<staticContent>
<clientCache cacheControlCustom="public" cacheControlMode="UseMaxAge" cacheControlMaxAge="31.00:00:00" />
<remove fileExtension=".woff2" />
<mimeMap fileExtension=".woff2" mimeType="font/woff2" />
<remove fileExtension=".woff" />
<mimeMap fileExtension=".woff" mimeType="font/woff" />
</staticContent>
<urlCompression doStaticCompression="true" doDynamicCompression="true" dynamicCompressionBeforeCache="true" />
<rewrite>
<rules>
<rule name="ProxyAdmin" stopProcessing="true">
<match url="developer-academy(.*)" />
<action type="Rewrite" url="https://ucappleacademy.azurewebsites.net/{R:1}" logRewrittenUrl="false" />
</rule>
<rule name="Redirect rquests to default azure websites domain" stopProcessing="true">
<match url="(.*)" />
<conditions logicalGrouping="MatchAny">
<add input="{HTTP_HOST}" pattern="^semeru\.azurewebsites\.net$" />
</conditions>
<action type="Redirect" url="https://www.uc.ac.id/{R:0}" />
</rule>
<rule name="WordPress: https://www.uc.ac.id" patternSyntax="Wildcard">
<match url="*"/>
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true"/>
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true"/>
</conditions>
<action type="Rewrite" url="index.php"/>
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>
and this is my application.xdt
<?xml version="1.0"?>
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
<system.webServer>
<proxy xdt:Transform="InsertIfMissing" enabled="true" preserveHostHeader="false" reverseRewriteHostInResponseHeaders="false" />
<httpCompression>
<dynamicTypes>
<add mimeType="application/json;charset=utf-8" enabled="true" xdt:Transform="InsertAfter(/configuration/system.webServer/httpCompression/dynamicTypes/add[(#mimeType='application/json')])" />
</dynamicTypes>
</httpCompression>
</system.webServer>
</configuration>