Manually update to idl@3.75.1

baselines/dom.generated.d.ts

@@ -29909,7 +29909,7 @@ interface RTCRtpScriptTransform {
 
 declare var RTCRtpScriptTransform: {
     prototype: RTCRtpScriptTransform;
-    new(worker: Worker, options?: any, transfer?: any[]): RTCRtpScriptTransform;
+    new(workerOrWorkerAndParameters: Worker, options?: any, transfer?: any[]): RTCRtpScriptTransform;
 };
 
 /**

baselines/ts5.5/dom.generated.d.ts

@@ -29885,7 +29885,7 @@ interface RTCRtpScriptTransform {
 
 declare var RTCRtpScriptTransform: {
     prototype: RTCRtpScriptTransform;
-    new(worker: Worker, options?: any, transfer?: any[]): RTCRtpScriptTransform;
+    new(workerOrWorkerAndParameters: Worker, options?: any, transfer?: any[]): RTCRtpScriptTransform;
 };
 
 /**

baselines/ts5.6/dom.generated.d.ts

@@ -29906,7 +29906,7 @@ interface RTCRtpScriptTransform {
 
 declare var RTCRtpScriptTransform: {
     prototype: RTCRtpScriptTransform;
-    new(worker: Worker, options?: any, transfer?: any[]): RTCRtpScriptTransform;
+    new(workerOrWorkerAndParameters: Worker, options?: any, transfer?: any[]): RTCRtpScriptTransform;
 };
 
 /**

baselines/ts5.9/dom.generated.d.ts

@@ -29906,7 +29906,7 @@ interface RTCRtpScriptTransform {
 
 declare var RTCRtpScriptTransform: {
     prototype: RTCRtpScriptTransform;
-    new(worker: Worker, options?: any, transfer?: any[]): RTCRtpScriptTransform;
+    new(workerOrWorkerAndParameters: Worker, options?: any, transfer?: any[]): RTCRtpScriptTransform;
 };
 
 /**

inputfiles/patches/webrtc-encoded-transform.kdl

@@ -10,6 +10,15 @@ interface RTCEncodedVideoFrame {
   property timestamp type="long long" readonly=#true mdnUrl="https://developer.mozilla.org/docs/Web/API/RTCEncodedVideoFrame/timestamp"
 }
 
+interface RTCRtpScriptTransform {
+  constructor signatureIndex=0 {
+    // WorkerOrWorkerAndParameters has no implementation as of 2026-04
+    param workerOrWorkerAndParameters name="worker" {
+      type Worker
+    }
+  }
+}
+
 removals {
   dictionary RTCEncodedAudioFrameMetadata {
     member audioLevel // No implementation as of 2025-05

src/build/patches.ts

@@ -222,7 +222,7 @@ function handleMixinAndInterfaces(
   node: Node,
   type: "mixin" | "interface",
 ): DeepPartial<Interface> {
-  const name = string(node.properties?.name || node.values[0]);
+  const name = string(node.properties.name || node.values[0]);
 
   const event: Event[] = [];
   const property: Record<string, DeepPartial<Property>> = {};