diff --git a/crates/wzp-web/static/js/wzp-full.js b/crates/wzp-web/static/js/wzp-full.js
index c301d60..43a917e 100644
--- a/crates/wzp-web/static/js/wzp-full.js
+++ b/crates/wzp-web/static/js/wzp-full.js
@@ -15,7 +15,7 @@
 
 'use strict';
 
-const WZP_WASM_PATH = '/wasm/wzp_wasm.js';
+const WZP_WASM_PATH = (window.__WZP_BASE_URL || '') + '/wasm/wzp_wasm.js';
 
 // 12-byte MediaHeader size (matches wzp-proto MediaHeader::WIRE_SIZE).
 const MEDIA_HEADER_SIZE = 12;
diff --git a/crates/wzp-web/static/js/wzp-hybrid.js b/crates/wzp-web/static/js/wzp-hybrid.js
index a5527f1..1e42614 100644
--- a/crates/wzp-web/static/js/wzp-hybrid.js
+++ b/crates/wzp-web/static/js/wzp-hybrid.js
@@ -10,7 +10,7 @@
 'use strict';
 
 // WASM module path (served from /wasm/ by the wzp-web bridge).
-const WZP_WASM_PATH = '/wasm/wzp_wasm.js';
+const WZP_WASM_PATH = (window.__WZP_BASE_URL || '') + '/wasm/wzp_wasm.js';
 
 class WZPHybridClient {
   /**
diff --git a/crates/wzp-web/static/js/wzp-ws-fec.js b/crates/wzp-web/static/js/wzp-ws-fec.js
index 919d697..aea7f57 100644
--- a/crates/wzp-web/static/js/wzp-ws-fec.js
+++ b/crates/wzp-web/static/js/wzp-ws-fec.js
@@ -7,7 +7,7 @@
 'use strict';
 
 // WASM module path (served from /wasm/ by the wzp-web bridge).
-const WZP_WS_FEC_WASM_PATH = '/wasm/wzp_wasm.js';
+const WZP_WS_FEC_WASM_PATH = (window.__WZP_BASE_URL || '') + '/wasm/wzp_wasm.js';
 
 // 12-byte MediaHeader size (matches wzp-proto MediaHeader::WIRE_SIZE).
 const WZP_WS_FEC_HEADER_SIZE = 12;
diff --git a/crates/wzp-web/static/js/wzp-ws-full.js b/crates/wzp-web/static/js/wzp-ws-full.js
index f188b9d..ceb69d1 100644
--- a/crates/wzp-web/static/js/wzp-ws-full.js
+++ b/crates/wzp-web/static/js/wzp-ws-full.js
@@ -7,7 +7,7 @@
 'use strict';
 
 // WASM module path (served from /wasm/ by the wzp-web bridge).
-const WZP_WS_FULL_WASM_PATH = '/wasm/wzp_wasm.js';
+const WZP_WS_FULL_WASM_PATH = (window.__WZP_BASE_URL || '') + '/wasm/wzp_wasm.js';
 
 // 12-byte MediaHeader size (matches wzp-proto MediaHeader::WIRE_SIZE).
 const WZP_WS_FULL_HEADER_SIZE = 12;