diff --git a/ft2.target.darwin-arm.mk b/ft2.target.darwin-arm.mk
index 217c56b..d089762 100644
--- a/ft2.target.darwin-arm.mk
+++ b/ft2.target.darwin-arm.mk
@@ -107,7 +107,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
@@ -218,7 +219,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
diff --git a/ft2.target.darwin-arm64.mk b/ft2.target.darwin-arm64.mk
index 34b3065..a62d657 100644
--- a/ft2.target.darwin-arm64.mk
+++ b/ft2.target.darwin-arm64.mk
@@ -96,7 +96,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
@@ -195,7 +196,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
diff --git a/ft2.target.darwin-mips.mk b/ft2.target.darwin-mips.mk
index 123c2a3..3858c68 100644
--- a/ft2.target.darwin-mips.mk
+++ b/ft2.target.darwin-mips.mk
@@ -100,7 +100,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
@@ -204,7 +205,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
diff --git a/ft2.target.darwin-x86.mk b/ft2.target.darwin-x86.mk
index 0e4cd27..2256a13 100644
--- a/ft2.target.darwin-x86.mk
+++ b/ft2.target.darwin-x86.mk
@@ -102,7 +102,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
@@ -207,7 +208,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
diff --git a/ft2.target.darwin-x86_64.mk b/ft2.target.darwin-x86_64.mk
index f0cc055..34691e8 100644
--- a/ft2.target.darwin-x86_64.mk
+++ b/ft2.target.darwin-x86_64.mk
@@ -101,7 +101,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
@@ -205,7 +206,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
diff --git a/ft2.target.linux-arm.mk b/ft2.target.linux-arm.mk
index 217c56b..d089762 100644
--- a/ft2.target.linux-arm.mk
+++ b/ft2.target.linux-arm.mk
@@ -107,7 +107,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
@@ -218,7 +219,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
diff --git a/ft2.target.linux-arm64.mk b/ft2.target.linux-arm64.mk
index 34b3065..a62d657 100644
--- a/ft2.target.linux-arm64.mk
+++ b/ft2.target.linux-arm64.mk
@@ -96,7 +96,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
@@ -195,7 +196,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
diff --git a/ft2.target.linux-mips.mk b/ft2.target.linux-mips.mk
index 123c2a3..3858c68 100644
--- a/ft2.target.linux-mips.mk
+++ b/ft2.target.linux-mips.mk
@@ -100,7 +100,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
@@ -204,7 +205,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
diff --git a/ft2.target.linux-x86.mk b/ft2.target.linux-x86.mk
index 0e4cd27..2256a13 100644
--- a/ft2.target.linux-x86.mk
+++ b/ft2.target.linux-x86.mk
@@ -102,7 +102,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
@@ -207,7 +208,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
diff --git a/ft2.target.linux-x86_64.mk b/ft2.target.linux-x86_64.mk
index f0cc055..34691e8 100644
--- a/ft2.target.linux-x86_64.mk
+++ b/ft2.target.linux-x86_64.mk
@@ -101,7 +101,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
@@ -205,7 +206,8 @@
 	'-DENABLE_PRINTING=1' \
 	'-DENABLE_MANAGED_USERS=1' \
 	'-DDATA_REDUCTION_FALLBACK_HOST="http://compress.googlezip.net:80/"' \
-	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
+	'-DDATA_REDUCTION_DEV_HOST="https://proxy-dev.googlezip.net:443/"' \
+	'-DDATA_REDUCTION_DEV_FALLBACK_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \