Remove Specific Request Headers From Response

Shutdown the server if it is already running.
Open <APIM_HOME>/repository/deployment/server/synapse-configs/default/sequences/main.xml

Add the below property just before the beginning of "send" mediator.

<property name="<name of the header to be removed>" scope="transport" action="remove"/>

Eg : (XXXX - is the name of the header to be removed)

.
.
<property name="Accept" scope="transport" action="remove"/>
<property name="X-JWT-Assertion" scope="transport" action="remove"/>
<property name="XXXX" scope="transport" action="remove"/> 
<send/>
.
.

Open <APIM_HOME>/repository/deployment/server/synapse-configs/default/sequences/fault.xml

Add the below property just before the beginning of "CORS request handler" sequnce.

<property name="<name of the header to be removed>" scope="transport" action="remove"/>

Eg : (XXXX - is the name of the header to be removed)

.
.
<property name="Accept" scope="transport" action="remove"/>
<property name="X-JWT-Assertion" scope="transport" action="remove"/>
<property name="XXXX" scope="transport" action="remove"/>
<sequence key="_cors_request_handler_"/>
.
.

Start the server.

Note : The above method removes only the specified headers from the response. If there is a need to remove all the headers, please follow the instructions below.

In <APIM_HOME>/repository/deployment/server/synapse-configs/default/sequences/main.xml file, add the below property just after the beginning of <out> sequence opening tag.
```
<property name="TRANSPORT_HEADERS" action="remove" scope="axis2"/>
```
Eg
```
.
.
<out>
<property name="TRANSPORT_HEADERS" action="remove" scope="axis2"/>
.
.
```

In <APIM_HOME>/repository/deployment/server/synapse-configs/default/sequences/fault.xml file, add the below property just after the <send> mediator.

<property name="TRANSPORT_HEADERS" action="remove" scope="axis2"/>

.
.
<property name="TRANSPORT_HEADERS" action="remove" scope="axis2"/>
<send/>
.
.