diff --git a/.rhdh/docker/Dockerfile b/.rhdh/docker/Dockerfile
index a4dabd9ecd..0b32f955e9 100644
--- a/.rhdh/docker/Dockerfile
+++ b/.rhdh/docker/Dockerfile
@@ -233,6 +233,13 @@ ENV CHOKIDAR_USEPOLLING='1' CHOKIDAR_INTERVAL='10000'
 # To avoid running scripts when using `npm pack` to install dynamic plugins
 ENV NPM_CONFIG_ignore-scripts='true'
 
+# RHIDP-2217: corporate proxy support (configured using 'global-agent')
+# This is to avoid having to define several environment variables for the same purpose,
+# i.e, GLOBAL_AGENT_HTTP(S)_PROXY (for 'global-agent') and the conventional HTTP(S)_PROXY (honored by other libraries like Axios).
+# By setting GLOBAL_AGENT_ENVIRONMENT_VARIABLE_NAMESPACE to an empty value,
+# 'global-agent' will use the same HTTP_PROXY, HTTPS_PROXY and NO_PROXY environment variables.
+ENV GLOBAL_AGENT_ENVIRONMENT_VARIABLE_NAMESPACE=''
+
 ENTRYPOINT ["node", "packages/backend", "--config", "app-config.yaml", "--config", "app-config.example.yaml", "--config", "app-config.example.production.yaml"]
 
 # append Brew metadata here
diff --git a/docker/Dockerfile b/docker/Dockerfile
index b1277c0e30..cd9882dbce 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -137,6 +137,13 @@ ENV CHOKIDAR_USEPOLLING='1' CHOKIDAR_INTERVAL='10000'
 # To avoid running scripts when using `npm pack` to install dynamic plugins
 ENV NPM_CONFIG_ignore-scripts='true'
 
+# RHIDP-2217: corporate proxy support (configured using 'global-agent')
+# This is to avoid having to define several environment variables for the same purpose,
+# i.e, GLOBAL_AGENT_HTTP(S)_PROXY (for 'global-agent') and the conventional HTTP(S)_PROXY (honored by other libraries like Axios).
+# By setting GLOBAL_AGENT_ENVIRONMENT_VARIABLE_NAMESPACE to an empty value,
+# 'global-agent' will use the same HTTP_PROXY, HTTPS_PROXY and NO_PROXY environment variables.
+ENV GLOBAL_AGENT_ENVIRONMENT_VARIABLE_NAMESPACE=''
+
 ENTRYPOINT ["node", "packages/backend", "--config", "app-config.yaml", "--config", "app-config.example.yaml", "--config", "app-config.example.production.yaml"]
 
 # append Brew metadata here
diff --git a/showcase-docs/corporate-proxy.md b/showcase-docs/corporate-proxy.md
index 2ffeab3561..d9e7bffb06 100644
--- a/showcase-docs/corporate-proxy.md
+++ b/showcase-docs/corporate-proxy.md
@@ -2,7 +2,6 @@
 
 Out of the box, the Showcase application can be run behind a corporate proxy, by setting any of the following environment variables prior to starting the application:
 
-- `GLOBAL_AGENT_ENVIRONMENT_VARIABLE_NAMESPACE` to an empty value
 - `HTTP_PROXY`: HTTP proxy to use.
 - `HTTPS_PROXY`: distinct proxy to use for HTTPS requests.
 
@@ -16,8 +15,6 @@ You can set the proxy information in your Helm `values` file, like so:
 upstream:
   backstage:
     extraEnvVars:
-      - name: GLOBAL_AGENT_ENVIRONMENT_VARIABLE_NAMESPACE
-        value: ''
       - name: HTTP_PROXY
         # HTTP proxy to use
         value: '<my_http_proxy_url>'
@@ -38,14 +35,12 @@ upstream:
 upstream:
   backstage:
     extraEnvVars:
-      - name: GLOBAL_AGENT_ENVIRONMENT_VARIABLE_NAMESPACE
-        value: ''
       - name: HTTP_PROXY
         value: 'http://10.10.10.105:3128'
       - name: HTTPS_PROXY
         value: 'http://10.10.10.106:3128'
       - name: NO_PROXY
-        value: 'localhost,internal.example.org'
+        value: 'localhost,example.org'
 ```
 
 </details>
@@ -59,8 +54,6 @@ spec:
   application:
     extraEnvs:
       envs:
-        - name: GLOBAL_AGENT_ENVIRONMENT_VARIABLE_NAMESPACE
-          value: ''
         - name: HTTP_PROXY
           # HTTP proxy to use
           value: '<my_http_proxy_url>'
@@ -82,14 +75,26 @@ spec:
   application:
     extraEnvs:
       envs:
-        - name: GLOBAL_AGENT_ENVIRONMENT_VARIABLE_NAMESPACE
-          value: ''
         - name: HTTP_PROXY
           value: 'http://10.10.10.105:3128'
         - name: HTTPS_PROXY
           value: 'http://10.10.10.105:3128'
         - name: NO_PROXY
-          value: 'localhost,internal.example.org'
+          value: 'localhost,example.org'
 ```
 
 </details>
+
+## Local development
+
+If you are behind a corporate proxy and are running the Showcase locally, as depicted in [Running locally with a basic configuration](./getting-started.md#running-locally-with-a-basic-configuration) or [Running locally with the Optional Plugins](./getting-started.md#running-locally-with-the-optional-plugins), you will need to additionally set the `GLOBAL_AGENT_ENVIRONMENT_VARIABLE_NAMESPACE` to an empty value prior to running `yarn start`.
+
+Example:
+
+```shell
+$ GLOBAL_AGENT_ENVIRONMENT_VARIABLE_NAMESPACE='' \
+  HTTP_PROXY=http://10.10.10.105:3128 \
+  HTTPS_PROXY=http://10.10.10.106:3128 \
+  NO_PROXY='localhost,example.org' \
+  yarn start
+```