diff --git a/.gitignore b/.gitignore
index 485f82c..0086182 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,5 +24,8 @@ Thumbs.db
 *.log
 logs/
 
+# Pre-downloaded browsers (too large for git)
+browsers/*.zip
+
 # Test coverage
 coverage/
diff --git a/Jenkinsfile b/Jenkinsfile
index f8dfd11..2ae4ffa 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -18,7 +18,7 @@ pipeline {
 
         stage('Build Docker Image') {
             steps {
-                sh "docker build -t ${APP_NAME}:${BUILD_NUMBER} -t ${APP_NAME}:latest ."
+                sh "docker build --build-arg HTTP_PROXY=http://host.docker.internal:7897 --build-arg HTTPS_PROXY=http://host.docker.internal:7897 -t ${APP_NAME}:${BUILD_NUMBER} -t ${APP_NAME}:latest ."
             }
         }