diff --git a/packages/devtools-vite/src/plugin.ts b/packages/devtools-vite/src/plugin.ts
index 0d55d2e2..dfe2669a 100644
--- a/packages/devtools-vite/src/plugin.ts
+++ b/packages/devtools-vite/src/plugin.ts
@@ -44,7 +44,6 @@ export const defineDevtoolsConfig = (config: TanStackDevtoolsViteConfig) =>
 
 export const devtools = (args?: TanStackDevtoolsViteConfig): Array<Plugin> => {
   let port = 5173
-  let host = 'http'
   const enhancedLogsConfig = args?.enhancedLogs ?? { enabled: true }
   const injectSourceConfig = args?.injectSource ?? { enabled: true }
   const bus = new ServerEventBus(args?.eventBusConfig)
@@ -71,9 +70,6 @@ export const devtools = (args?: TanStackDevtoolsViteConfig): Array<Plugin> => {
     {
       enforce: 'pre',
       name: '@tanstack/devtools:custom-server',
-      configResolved(config) {
-        host = config.server.https?.cert ? 'https' : 'http'
-      },
       apply(config) {
         // Custom server is only needed in development for piping events to the client
         return config.mode === 'development'
@@ -119,15 +115,6 @@ export const devtools = (args?: TanStackDevtoolsViteConfig): Array<Plugin> => {
           }),
         )
       },
-      transform(code) {
-        if (code.includes('__TSD_PORT__')) {
-          code = code.replace('__TSD_PORT__', String(port))
-        }
-        if (code.includes('__TSD_HOST__')) {
-          code = code.replace('__TSD_HOST__', host)
-        }
-        return code
-      },
     },
     {
       name: '@tanstack/devtools:better-console-logs',
diff --git a/packages/devtools/src/devtools.tsx b/packages/devtools/src/devtools.tsx
index b02664ef..ab5270cf 100644
--- a/packages/devtools/src/devtools.tsx
+++ b/packages/devtools/src/devtools.tsx
@@ -174,7 +174,9 @@ export default function DevTools() {
           e.preventDefault()
           e.stopPropagation()
           fetch(
-            `__TSD_HOST__://localhost:__TSD_PORT__/__tsd/open-source?source=${encodeURIComponent(dataSource)}`,
+            `${location.origin}/__tsd/open-source?source=${encodeURIComponent(
+              dataSource,
+            )}`,
           ).catch(() => {})
         }
       }