Fix HTTP headers section in data collected for Java and Android SDK (#13530)

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Author: adinauer

docs/platforms/android/data-management/data-collected.mdx

@@ -12,7 +12,7 @@ Many of the categories listed here require you to enable the <PlatformLink to="/
 
 ## HTTP Headers
 
-By default, the Sentry SDK doesn't send any HTTP headers. Even when sending HTTP headers is enabled, we have a [denylist](https://github.com/getsentry/sentry-java/blob/main/sentry/src/main/java/io/sentry/util/HttpUtils.java#L21-L34) in place, which filters out any headers that contain sensitive data.
+By default, the Sentry SDK doesn't send any headers for outgoing HTTP request. Even when sending HTTP headers is enabled, we have a [denylist](https://github.com/getsentry/sentry-java/blob/main/sentry/src/main/java/io/sentry/util/HttpUtils.java#L21-L34) in place, which filters out any headers that contain sensitive data.
 
 To start sending HTTP headers, set <PlatformLink to="/configuration/options/#send-default-pii">`sendDefaultPii=true`</PlatformLink>.
 

docs/platforms/java/common/data-management/data-collected.mdx

@@ -12,9 +12,17 @@ For many of the categories listed here it is required to enable the <PlatformLin
 
 ## HTTP Headers
 
-By default, the Sentry SDK doesn't send any HTTP headers. Even when sending HTTP headers is enabled, we have a [denylist](https://github.com/getsentry/sentry-java/blob/main/sentry/src/main/java/io/sentry/util/HttpUtils.java#L21-L34) in place, which filters out any headers that contain sensitive data.
+### Outgoing Requests
 
-To start sending HTTP headers, set <PlatformLink to="/configuration/options/#send-default-pii">`sendDefaultPii=true`</PlatformLink>.
+By default, the Sentry SDK doesn't send any headers for outgoing HTTP requests. Even when sending HTTP headers is enabled, we have a [denylist](https://github.com/getsentry/sentry-java/blob/main/sentry/src/main/java/io/sentry/util/HttpUtils.java#L21-L34) in place, which filters out any headers that contain sensitive data.
+
+To send all HTTP headers, set <PlatformLink to="/configuration/options/#send-default-pii">`sendDefaultPii=true`</PlatformLink>.
+
+### Incoming Requests
+
+By default, the Sentry SDK sends headers for incoming HTTP requests to Sentry but filters out any headers that contain sensitive data. (See the [list of headers](https://github.com/getsentry/sentry-java/blob/main/sentry/src/main/java/io/sentry/util/HttpUtils.java#L21-L34) that are filtered).
+
+To send all HTTP headers, set <PlatformLink to="/configuration/options/#send-default-pii">`sendDefaultPii=true`</PlatformLink>.
 
 ## Cookies
 
@@ -52,7 +60,7 @@ The request body of incoming HTTP requests can be sent to Sentry. Whether it's s
 
 ## Source Context
 
-Our build tool plugins for Gradle and Maven can upload your source code to Sentry, which can then used to show the lines of code where an error happened in the Issue Details page. 
+Our build tool plugins for Gradle and Maven can upload your source code to Sentry, which can then used to show the lines of code where an error happened in the Issue Details page.
 
 To opt into sending this source context to Sentry, you have to enable the feature as described in <PlatformLink to="/source-context/">the Source Context documentation</PlatformLink>.