diff --git a/crates/web-sys/src/features/gen_BluetoothRemoteGattCharacteristic.rs b/crates/web-sys/src/features/gen_BluetoothRemoteGattCharacteristic.rs
index 39c9991a252..f185f07bc63 100644
--- a/crates/web-sys/src/features/gen_BluetoothRemoteGattCharacteristic.rs
+++ b/crates/web-sys/src/features/gen_BluetoothRemoteGattCharacteristic.rs
@@ -206,7 +206,7 @@ extern "C" {
         value: &::js_sys::Object,
     ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
-    # [wasm_bindgen (method , structural , js_class = "BluetoothRemoteGATTCharacteristic" , js_name = writeValue)]
+    # [wasm_bindgen (catch , method , structural , js_class = "BluetoothRemoteGATTCharacteristic" , js_name = writeValue)]
     #[doc = "The `writeValue()` method."]
     #[doc = ""]
     #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/BluetoothRemoteGATTCharacteristic/writeValue)"]
@@ -218,7 +218,7 @@ extern "C" {
     pub fn write_value_with_u8_slice(
         this: &BluetoothRemoteGattCharacteristic,
         value: &mut [u8],
-    ) -> ::js_sys::Promise;
+    ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     # [wasm_bindgen (catch , method , structural , js_class = "BluetoothRemoteGATTCharacteristic" , js_name = writeValue)]
     #[doc = "The `writeValue()` method."]
@@ -248,7 +248,7 @@ extern "C" {
         value: &::js_sys::Object,
     ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
-    # [wasm_bindgen (method , structural , js_class = "BluetoothRemoteGATTCharacteristic" , js_name = writeValueWithResponse)]
+    # [wasm_bindgen (catch , method , structural , js_class = "BluetoothRemoteGATTCharacteristic" , js_name = writeValueWithResponse)]
     #[doc = "The `writeValueWithResponse()` method."]
     #[doc = ""]
     #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/BluetoothRemoteGATTCharacteristic/writeValueWithResponse)"]
@@ -260,7 +260,7 @@ extern "C" {
     pub fn write_value_with_response_with_u8_slice(
         this: &BluetoothRemoteGattCharacteristic,
         value: &mut [u8],
-    ) -> ::js_sys::Promise;
+    ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     # [wasm_bindgen (catch , method , structural , js_class = "BluetoothRemoteGATTCharacteristic" , js_name = writeValueWithResponse)]
     #[doc = "The `writeValueWithResponse()` method."]
@@ -290,7 +290,7 @@ extern "C" {
         value: &::js_sys::Object,
     ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
-    # [wasm_bindgen (method , structural , js_class = "BluetoothRemoteGATTCharacteristic" , js_name = writeValueWithoutResponse)]
+    # [wasm_bindgen (catch , method , structural , js_class = "BluetoothRemoteGATTCharacteristic" , js_name = writeValueWithoutResponse)]
     #[doc = "The `writeValueWithoutResponse()` method."]
     #[doc = ""]
     #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/BluetoothRemoteGATTCharacteristic/writeValueWithoutResponse)"]
@@ -302,7 +302,7 @@ extern "C" {
     pub fn write_value_without_response_with_u8_slice(
         this: &BluetoothRemoteGattCharacteristic,
         value: &mut [u8],
-    ) -> ::js_sys::Promise;
+    ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     # [wasm_bindgen (catch , method , structural , js_class = "BluetoothRemoteGATTCharacteristic" , js_name = writeValueWithoutResponse)]
     #[doc = "The `writeValueWithoutResponse()` method."]
diff --git a/crates/web-sys/src/features/gen_BluetoothRemoteGattDescriptor.rs b/crates/web-sys/src/features/gen_BluetoothRemoteGattDescriptor.rs
index 8c2da626172..76e5709586e 100644
--- a/crates/web-sys/src/features/gen_BluetoothRemoteGattDescriptor.rs
+++ b/crates/web-sys/src/features/gen_BluetoothRemoteGattDescriptor.rs
@@ -78,7 +78,7 @@ extern "C" {
         value: &::js_sys::Object,
     ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
-    # [wasm_bindgen (method , structural , js_class = "BluetoothRemoteGATTDescriptor" , js_name = writeValue)]
+    # [wasm_bindgen (catch , method , structural , js_class = "BluetoothRemoteGATTDescriptor" , js_name = writeValue)]
     #[doc = "The `writeValue()` method."]
     #[doc = ""]
     #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/BluetoothRemoteGATTDescriptor/writeValue)"]
@@ -90,7 +90,7 @@ extern "C" {
     pub fn write_value_with_u8_slice(
         this: &BluetoothRemoteGattDescriptor,
         value: &mut [u8],
-    ) -> ::js_sys::Promise;
+    ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     # [wasm_bindgen (catch , method , structural , js_class = "BluetoothRemoteGATTDescriptor" , js_name = writeValue)]
     #[doc = "The `writeValue()` method."]
diff --git a/crates/web-sys/src/features/gen_HidDevice.rs b/crates/web-sys/src/features/gen_HidDevice.rs
index 6f4ca225106..51bc70e5f2f 100644
--- a/crates/web-sys/src/features/gen_HidDevice.rs
+++ b/crates/web-sys/src/features/gen_HidDevice.rs
@@ -142,7 +142,7 @@ extern "C" {
         data: &::js_sys::Object,
     ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
-    # [wasm_bindgen (method , structural , js_class = "HIDDevice" , js_name = sendFeatureReport)]
+    # [wasm_bindgen (catch , method , structural , js_class = "HIDDevice" , js_name = sendFeatureReport)]
     #[doc = "The `sendFeatureReport()` method."]
     #[doc = ""]
     #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/HIDDevice/sendFeatureReport)"]
@@ -155,7 +155,7 @@ extern "C" {
         this: &HidDevice,
         report_id: u8,
         data: &mut [u8],
-    ) -> ::js_sys::Promise;
+    ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     # [wasm_bindgen (catch , method , structural , js_class = "HIDDevice" , js_name = sendFeatureReport)]
     #[doc = "The `sendFeatureReport()` method."]
@@ -187,7 +187,7 @@ extern "C" {
         data: &::js_sys::Object,
     ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
-    # [wasm_bindgen (method , structural , js_class = "HIDDevice" , js_name = sendReport)]
+    # [wasm_bindgen (catch , method , structural , js_class = "HIDDevice" , js_name = sendReport)]
     #[doc = "The `sendReport()` method."]
     #[doc = ""]
     #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/HIDDevice/sendReport)"]
@@ -200,7 +200,7 @@ extern "C" {
         this: &HidDevice,
         report_id: u8,
         data: &mut [u8],
-    ) -> ::js_sys::Promise;
+    ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     # [wasm_bindgen (catch , method , structural , js_class = "HIDDevice" , js_name = sendReport)]
     #[doc = "The `sendReport()` method."]
diff --git a/crates/web-sys/src/features/gen_UsbDevice.rs b/crates/web-sys/src/features/gen_UsbDevice.rs
index c8c0dbe17dc..8ac1f4737b6 100644
--- a/crates/web-sys/src/features/gen_UsbDevice.rs
+++ b/crates/web-sys/src/features/gen_UsbDevice.rs
@@ -291,7 +291,7 @@ extern "C" {
     ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     #[cfg(feature = "UsbControlTransferParameters")]
-    # [wasm_bindgen (method , structural , js_class = "USBDevice" , js_name = controlTransferOut)]
+    # [wasm_bindgen (catch , method , structural , js_class = "USBDevice" , js_name = controlTransferOut)]
     #[doc = "The `controlTransferOut()` method."]
     #[doc = ""]
     #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/USBDevice/controlTransferOut)"]
@@ -304,7 +304,7 @@ extern "C" {
         this: &UsbDevice,
         setup: &UsbControlTransferParameters,
         data: &mut [u8],
-    ) -> ::js_sys::Promise;
+    ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     #[cfg(feature = "UsbControlTransferParameters")]
     # [wasm_bindgen (catch , method , structural , js_class = "USBDevice" , js_name = controlTransferOut)]
@@ -364,7 +364,7 @@ extern "C" {
         packet_lengths: &::wasm_bindgen::JsValue,
     ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
-    # [wasm_bindgen (method , structural , js_class = "USBDevice" , js_name = isochronousTransferOut)]
+    # [wasm_bindgen (catch , method , structural , js_class = "USBDevice" , js_name = isochronousTransferOut)]
     #[doc = "The `isochronousTransferOut()` method."]
     #[doc = ""]
     #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/USBDevice/isochronousTransferOut)"]
@@ -378,7 +378,7 @@ extern "C" {
         endpoint_number: u8,
         data: &mut [u8],
         packet_lengths: &::wasm_bindgen::JsValue,
-    ) -> ::js_sys::Promise;
+    ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     # [wasm_bindgen (catch , method , structural , js_class = "USBDevice" , js_name = isochronousTransferOut)]
     #[doc = "The `isochronousTransferOut()` method."]
@@ -481,7 +481,7 @@ extern "C" {
         data: &::js_sys::Object,
     ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
-    # [wasm_bindgen (method , structural , js_class = "USBDevice" , js_name = transferOut)]
+    # [wasm_bindgen (catch , method , structural , js_class = "USBDevice" , js_name = transferOut)]
     #[doc = "The `transferOut()` method."]
     #[doc = ""]
     #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/USBDevice/transferOut)"]
@@ -494,7 +494,7 @@ extern "C" {
         this: &UsbDevice,
         endpoint_number: u8,
         data: &mut [u8],
-    ) -> ::js_sys::Promise;
+    ) -> Result<::js_sys::Promise, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     # [wasm_bindgen (catch , method , structural , js_class = "USBDevice" , js_name = transferOut)]
     #[doc = "The `transferOut()` method."]
diff --git a/crates/web-sys/src/features/gen_XrFrame.rs b/crates/web-sys/src/features/gen_XrFrame.rs
index e0c46a2a4a1..1122bae9f22 100644
--- a/crates/web-sys/src/features/gen_XrFrame.rs
+++ b/crates/web-sys/src/features/gen_XrFrame.rs
@@ -40,7 +40,7 @@ extern "C" {
     #[doc = "[described in the `wasm-bindgen` guide](https://rustwasm.github.io/docs/wasm-bindgen/web-sys/unstable-apis.html)*"]
     pub fn predicted_display_time(this: &XrFrame) -> f64;
     #[cfg(web_sys_unstable_apis)]
-    # [wasm_bindgen (method , structural , js_class = "XRFrame" , js_name = fillJointRadii)]
+    # [wasm_bindgen (catch , method , structural , js_class = "XRFrame" , js_name = fillJointRadii)]
     #[doc = "The `fillJointRadii()` method."]
     #[doc = ""]
     #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/XRFrame/fillJointRadii)"]
@@ -53,7 +53,7 @@ extern "C" {
         this: &XrFrame,
         joint_spaces: &::wasm_bindgen::JsValue,
         radii: &mut [f32],
-    ) -> bool;
+    ) -> Result<bool, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     # [wasm_bindgen (catch , method , structural , js_class = "XRFrame" , js_name = fillJointRadii)]
     #[doc = "The `fillJointRadii()` method."]
@@ -71,7 +71,7 @@ extern "C" {
     ) -> Result<bool, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     #[cfg(feature = "XrSpace")]
-    # [wasm_bindgen (method , structural , js_class = "XRFrame" , js_name = fillPoses)]
+    # [wasm_bindgen (catch , method , structural , js_class = "XRFrame" , js_name = fillPoses)]
     #[doc = "The `fillPoses()` method."]
     #[doc = ""]
     #[doc = "[MDN Documentation](https://developer.mozilla.org/en-US/docs/Web/API/XRFrame/fillPoses)"]
@@ -85,7 +85,7 @@ extern "C" {
         spaces: &::wasm_bindgen::JsValue,
         base_space: &XrSpace,
         transforms: &mut [f32],
-    ) -> bool;
+    ) -> Result<bool, JsValue>;
     #[cfg(web_sys_unstable_apis)]
     #[cfg(feature = "XrSpace")]
     # [wasm_bindgen (catch , method , structural , js_class = "XRFrame" , js_name = fillPoses)]
diff --git a/crates/webidl/src/util.rs b/crates/webidl/src/util.rs
index 1a1282d3687..df7808fb3a8 100644
--- a/crates/webidl/src/util.rs
+++ b/crates/webidl/src/util.rs
@@ -732,7 +732,20 @@ fn arg_throws(ty: &IdlType<'_>) -> bool {
         | IdlType::Float32Array { allow_shared, .. }
         | IdlType::Float64Array { allow_shared, .. }
         | IdlType::ArrayBufferView { allow_shared, .. }
-        | IdlType::BufferSource { allow_shared, .. } => !allow_shared,
+        | IdlType::BufferSource { allow_shared, .. }
+        | IdlType::Identifier {
+            ty:
+                IdentifierType::Int8Slice { allow_shared, .. }
+                | IdentifierType::Uint8Slice { allow_shared, .. }
+                | IdentifierType::Uint8ClampedSlice { allow_shared, .. }
+                | IdentifierType::Int16Slice { allow_shared, .. }
+                | IdentifierType::Uint16Slice { allow_shared, .. }
+                | IdentifierType::Int32Slice { allow_shared, .. }
+                | IdentifierType::Uint32Slice { allow_shared, .. }
+                | IdentifierType::Float32Slice { allow_shared, .. }
+                | IdentifierType::Float64Slice { allow_shared, .. },
+            ..
+        } => !allow_shared,
         IdlType::Nullable(item) => arg_throws(item),
         IdlType::Union(list) => list.iter().any(arg_throws),
         // catch-all for everything else like Object