diff --git a/src/proxy/middleware/request/preprocessors/block-zoomer-origins.ts b/src/proxy/middleware/request/preprocessors/block-zoomer-origins.ts
index 680bc0a..d73e0a1 100644
--- a/src/proxy/middleware/request/preprocessors/block-zoomer-origins.ts
+++ b/src/proxy/middleware/request/preprocessors/block-zoomer-origins.ts
@@ -14,7 +14,7 @@ class ZoomerForbiddenError extends Error {
  * stop getting emails asking for tech support.
  */
 export const blockZoomerOrigins: RequestPreprocessor = (req) => {
-  const origin = req.headers.origin || req.headers.referer || req.headers.host || req.headers.x-direct-url;
+  const origin = req.headers.origin || req.headers.referer || req.headers.host;
   if (origin && DISALLOWED_ORIGIN_SUBSTRINGS.some((s) => origin.includes(s))) {
     // Venus-derivatives send a test prompt to check if the proxy is working.
     // We don't want to block that just yet.