diff --git a/js/js.translator/testData/box/regression/companionObjectInExternalInterface.kt b/js/js.translator/testData/box/regression/companionObjectInExternalInterface.kt
index 3ee97113c7c..123f77c9af7 100644
--- a/js/js.translator/testData/box/regression/companionObjectInExternalInterface.kt
+++ b/js/js.translator/testData/box/regression/companionObjectInExternalInterface.kt
@@ -3,6 +3,7 @@
 // This hack is used in org.w3c.* part of standard library to represent unions of Strings
 // Test that we are not actually trying to access nonexistent companion object
 
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface I {
     companion object
@@ -14,4 +15,4 @@ fun box(): String {
     if (I.O != I.O) return "Fail 1"
     if (I.O == I.K) return "Fail 2"
     return I.O.unsafeCast<String>() + I.K.unsafeCast<String>()
-}
\ No newline at end of file
+}
diff --git a/libraries/stdlib/js/src/org.w3c/org.w3c.dom.encryptedmedia.kt b/libraries/stdlib/js/src/org.w3c/org.w3c.dom.encryptedmedia.kt
index 993211e89cb..7e86611eb95 100644
--- a/libraries/stdlib/js/src/org.w3c/org.w3c.dom.encryptedmedia.kt
+++ b/libraries/stdlib/js/src/org.w3c/org.w3c.dom.encryptedmedia.kt
@@ -178,6 +178,7 @@ public inline fun MediaEncryptedEventInit(initDataType: String? = "", initData:
 }
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface MediaKeysRequirement {
     companion object
@@ -190,6 +191,7 @@ public inline val MediaKeysRequirement.Companion.OPTIONAL: MediaKeysRequirement
 public inline val MediaKeysRequirement.Companion.NOT_ALLOWED: MediaKeysRequirement get() = "not-allowed".asDynamic().unsafeCast<MediaKeysRequirement>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface MediaKeySessionType {
     companion object
@@ -200,6 +202,7 @@ public inline val MediaKeySessionType.Companion.TEMPORARY: MediaKeySessionType g
 public inline val MediaKeySessionType.Companion.PERSISTENT_LICENSE: MediaKeySessionType get() = "persistent-license".asDynamic().unsafeCast<MediaKeySessionType>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface MediaKeyStatus {
     companion object
@@ -220,6 +223,7 @@ public inline val MediaKeyStatus.Companion.STATUS_PENDING: MediaKeyStatus get()
 public inline val MediaKeyStatus.Companion.INTERNAL_ERROR: MediaKeyStatus get() = "internal-error".asDynamic().unsafeCast<MediaKeyStatus>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface MediaKeyMessageType {
     companion object
@@ -231,4 +235,4 @@ public inline val MediaKeyMessageType.Companion.LICENSE_RENEWAL: MediaKeyMessage
 
 public inline val MediaKeyMessageType.Companion.LICENSE_RELEASE: MediaKeyMessageType get() = "license-release".asDynamic().unsafeCast<MediaKeyMessageType>()
 
-public inline val MediaKeyMessageType.Companion.INDIVIDUALIZATION_REQUEST: MediaKeyMessageType get() = "individualization-request".asDynamic().unsafeCast<MediaKeyMessageType>()
\ No newline at end of file
+public inline val MediaKeyMessageType.Companion.INDIVIDUALIZATION_REQUEST: MediaKeyMessageType get() = "individualization-request".asDynamic().unsafeCast<MediaKeyMessageType>()
diff --git a/libraries/stdlib/js/src/org.w3c/org.w3c.dom.kt b/libraries/stdlib/js/src/org.w3c/org.w3c.dom.kt
index 91bac5b7e03..c9000908a42 100644
--- a/libraries/stdlib/js/src/org.w3c/org.w3c.dom.kt
+++ b/libraries/stdlib/js/src/org.w3c/org.w3c.dom.kt
@@ -6377,6 +6377,7 @@ public external interface UnionMessagePortOrWindowProxy
 public external interface HTMLOrSVGScriptElement
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface DocumentReadyState {
     companion object
@@ -6389,6 +6390,7 @@ public inline val DocumentReadyState.Companion.INTERACTIVE: DocumentReadyState g
 public inline val DocumentReadyState.Companion.COMPLETE: DocumentReadyState get() = "complete".asDynamic().unsafeCast<DocumentReadyState>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface CanPlayTypeResult {
     companion object
@@ -6401,6 +6403,7 @@ public inline val CanPlayTypeResult.Companion.MAYBE: CanPlayTypeResult get() = "
 public inline val CanPlayTypeResult.Companion.PROBABLY: CanPlayTypeResult get() = "probably".asDynamic().unsafeCast<CanPlayTypeResult>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface TextTrackMode {
     companion object
@@ -6413,6 +6416,7 @@ public inline val TextTrackMode.Companion.HIDDEN: TextTrackMode get() = "hidden"
 public inline val TextTrackMode.Companion.SHOWING: TextTrackMode get() = "showing".asDynamic().unsafeCast<TextTrackMode>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface TextTrackKind {
     companion object
@@ -6429,6 +6433,7 @@ public inline val TextTrackKind.Companion.CHAPTERS: TextTrackKind get() = "chapt
 public inline val TextTrackKind.Companion.METADATA: TextTrackKind get() = "metadata".asDynamic().unsafeCast<TextTrackKind>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface SelectionMode {
     companion object
@@ -6443,6 +6448,7 @@ public inline val SelectionMode.Companion.END: SelectionMode get() = "end".asDyn
 public inline val SelectionMode.Companion.PRESERVE: SelectionMode get() = "preserve".asDynamic().unsafeCast<SelectionMode>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface CanvasFillRule {
     companion object
@@ -6453,6 +6459,7 @@ public inline val CanvasFillRule.Companion.NONZERO: CanvasFillRule get() = "nonz
 public inline val CanvasFillRule.Companion.EVENODD: CanvasFillRule get() = "evenodd".asDynamic().unsafeCast<CanvasFillRule>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface ImageSmoothingQuality {
     companion object
@@ -6465,6 +6472,7 @@ public inline val ImageSmoothingQuality.Companion.MEDIUM: ImageSmoothingQuality
 public inline val ImageSmoothingQuality.Companion.HIGH: ImageSmoothingQuality get() = "high".asDynamic().unsafeCast<ImageSmoothingQuality>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface CanvasLineCap {
     companion object
@@ -6477,6 +6485,7 @@ public inline val CanvasLineCap.Companion.ROUND: CanvasLineCap get() = "round".a
 public inline val CanvasLineCap.Companion.SQUARE: CanvasLineCap get() = "square".asDynamic().unsafeCast<CanvasLineCap>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface CanvasLineJoin {
     companion object
@@ -6489,6 +6498,7 @@ public inline val CanvasLineJoin.Companion.BEVEL: CanvasLineJoin get() = "bevel"
 public inline val CanvasLineJoin.Companion.MITER: CanvasLineJoin get() = "miter".asDynamic().unsafeCast<CanvasLineJoin>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface CanvasTextAlign {
     companion object
@@ -6505,6 +6515,7 @@ public inline val CanvasTextAlign.Companion.RIGHT: CanvasTextAlign get() = "righ
 public inline val CanvasTextAlign.Companion.CENTER: CanvasTextAlign get() = "center".asDynamic().unsafeCast<CanvasTextAlign>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface CanvasTextBaseline {
     companion object
@@ -6523,6 +6534,7 @@ public inline val CanvasTextBaseline.Companion.IDEOGRAPHIC: CanvasTextBaseline g
 public inline val CanvasTextBaseline.Companion.BOTTOM: CanvasTextBaseline get() = "bottom".asDynamic().unsafeCast<CanvasTextBaseline>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface CanvasDirection {
     companion object
@@ -6535,6 +6547,7 @@ public inline val CanvasDirection.Companion.RTL: CanvasDirection get() = "rtl".a
 public inline val CanvasDirection.Companion.INHERIT: CanvasDirection get() = "inherit".asDynamic().unsafeCast<CanvasDirection>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface ScrollRestoration {
     companion object
@@ -6545,6 +6558,7 @@ public inline val ScrollRestoration.Companion.AUTO: ScrollRestoration get() = "a
 public inline val ScrollRestoration.Companion.MANUAL: ScrollRestoration get() = "manual".asDynamic().unsafeCast<ScrollRestoration>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface ImageOrientation {
     companion object
@@ -6555,6 +6569,7 @@ public inline val ImageOrientation.Companion.NONE: ImageOrientation get() = "non
 public inline val ImageOrientation.Companion.FLIPY: ImageOrientation get() = "flipY".asDynamic().unsafeCast<ImageOrientation>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface PremultiplyAlpha {
     companion object
@@ -6567,6 +6582,7 @@ public inline val PremultiplyAlpha.Companion.PREMULTIPLY: PremultiplyAlpha get()
 public inline val PremultiplyAlpha.Companion.DEFAULT: PremultiplyAlpha get() = "default".asDynamic().unsafeCast<PremultiplyAlpha>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface ColorSpaceConversion {
     companion object
@@ -6577,6 +6593,7 @@ public inline val ColorSpaceConversion.Companion.NONE: ColorSpaceConversion get(
 public inline val ColorSpaceConversion.Companion.DEFAULT: ColorSpaceConversion get() = "default".asDynamic().unsafeCast<ColorSpaceConversion>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface ResizeQuality {
     companion object
@@ -6591,6 +6608,7 @@ public inline val ResizeQuality.Companion.MEDIUM: ResizeQuality get() = "medium"
 public inline val ResizeQuality.Companion.HIGH: ResizeQuality get() = "high".asDynamic().unsafeCast<ResizeQuality>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface BinaryType {
     companion object
@@ -6601,6 +6619,7 @@ public inline val BinaryType.Companion.BLOB: BinaryType get() = "blob".asDynamic
 public inline val BinaryType.Companion.ARRAYBUFFER: BinaryType get() = "arraybuffer".asDynamic().unsafeCast<BinaryType>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface WorkerType {
     companion object
@@ -6611,6 +6630,7 @@ public inline val WorkerType.Companion.CLASSIC: WorkerType get() = "classic".asD
 public inline val WorkerType.Companion.MODULE: WorkerType get() = "module".asDynamic().unsafeCast<WorkerType>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface ShadowRootMode {
     companion object
@@ -6621,6 +6641,7 @@ public inline val ShadowRootMode.Companion.OPEN: ShadowRootMode get() = "open".a
 public inline val ShadowRootMode.Companion.CLOSED: ShadowRootMode get() = "closed".asDynamic().unsafeCast<ShadowRootMode>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface ScrollBehavior {
     companion object
@@ -6633,6 +6654,7 @@ public inline val ScrollBehavior.Companion.INSTANT: ScrollBehavior get() = "inst
 public inline val ScrollBehavior.Companion.SMOOTH: ScrollBehavior get() = "smooth".asDynamic().unsafeCast<ScrollBehavior>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface ScrollLogicalPosition {
     companion object
@@ -6647,6 +6669,7 @@ public inline val ScrollLogicalPosition.Companion.END: ScrollLogicalPosition get
 public inline val ScrollLogicalPosition.Companion.NEAREST: ScrollLogicalPosition get() = "nearest".asDynamic().unsafeCast<ScrollLogicalPosition>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface CSSBoxType {
     companion object
@@ -6658,4 +6681,4 @@ public inline val CSSBoxType.Companion.BORDER: CSSBoxType get() = "border".asDyn
 
 public inline val CSSBoxType.Companion.PADDING: CSSBoxType get() = "padding".asDynamic().unsafeCast<CSSBoxType>()
 
-public inline val CSSBoxType.Companion.CONTENT: CSSBoxType get() = "content".asDynamic().unsafeCast<CSSBoxType>()
\ No newline at end of file
+public inline val CSSBoxType.Companion.CONTENT: CSSBoxType get() = "content".asDynamic().unsafeCast<CSSBoxType>()
diff --git a/libraries/stdlib/js/src/org.w3c/org.w3c.dom.mediacapture.kt b/libraries/stdlib/js/src/org.w3c/org.w3c.dom.mediacapture.kt
index 84ebee5a423..efd481815ba 100644
--- a/libraries/stdlib/js/src/org.w3c/org.w3c.dom.mediacapture.kt
+++ b/libraries/stdlib/js/src/org.w3c/org.w3c.dom.mediacapture.kt
@@ -664,6 +664,7 @@ public inline fun Constraints(advanced: Array<ConstraintSet>? = undefined): Cons
 }
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface MediaStreamTrackState {
     companion object
@@ -674,6 +675,7 @@ public inline val MediaStreamTrackState.Companion.LIVE: MediaStreamTrackState ge
 public inline val MediaStreamTrackState.Companion.ENDED: MediaStreamTrackState get() = "ended".asDynamic().unsafeCast<MediaStreamTrackState>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface VideoFacingModeEnum {
     companion object
@@ -688,6 +690,7 @@ public inline val VideoFacingModeEnum.Companion.LEFT: VideoFacingModeEnum get()
 public inline val VideoFacingModeEnum.Companion.RIGHT: VideoFacingModeEnum get() = "right".asDynamic().unsafeCast<VideoFacingModeEnum>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface VideoResizeModeEnum {
     companion object
@@ -698,6 +701,7 @@ public inline val VideoResizeModeEnum.Companion.NONE: VideoResizeModeEnum get()
 public inline val VideoResizeModeEnum.Companion.CROP_AND_SCALE: VideoResizeModeEnum get() = "crop-and-scale".asDynamic().unsafeCast<VideoResizeModeEnum>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface MediaDeviceKind {
     companion object
@@ -707,4 +711,4 @@ public inline val MediaDeviceKind.Companion.AUDIOINPUT: MediaDeviceKind get() =
 
 public inline val MediaDeviceKind.Companion.AUDIOOUTPUT: MediaDeviceKind get() = "audiooutput".asDynamic().unsafeCast<MediaDeviceKind>()
 
-public inline val MediaDeviceKind.Companion.VIDEOINPUT: MediaDeviceKind get() = "videoinput".asDynamic().unsafeCast<MediaDeviceKind>()
\ No newline at end of file
+public inline val MediaDeviceKind.Companion.VIDEOINPUT: MediaDeviceKind get() = "videoinput".asDynamic().unsafeCast<MediaDeviceKind>()
diff --git a/libraries/stdlib/js/src/org.w3c/org.w3c.dom.mediasource.kt b/libraries/stdlib/js/src/org.w3c/org.w3c.dom.mediasource.kt
index 7ba5aca271c..a6bdfe56615 100644
--- a/libraries/stdlib/js/src/org.w3c/org.w3c.dom.mediasource.kt
+++ b/libraries/stdlib/js/src/org.w3c/org.w3c.dom.mediasource.kt
@@ -77,6 +77,7 @@ public external abstract class SourceBufferList : EventTarget {
 public inline operator fun SourceBufferList.get(index: Int): SourceBuffer? = asDynamic()[index]
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface ReadyState {
     companion object
@@ -89,6 +90,7 @@ public inline val ReadyState.Companion.OPEN: ReadyState get() = "open".asDynamic
 public inline val ReadyState.Companion.ENDED: ReadyState get() = "ended".asDynamic().unsafeCast<ReadyState>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface EndOfStreamError {
     companion object
@@ -99,6 +101,7 @@ public inline val EndOfStreamError.Companion.NETWORK: EndOfStreamError get() = "
 public inline val EndOfStreamError.Companion.DECODE: EndOfStreamError get() = "decode".asDynamic().unsafeCast<EndOfStreamError>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface AppendMode {
     companion object
@@ -106,4 +109,4 @@ public external interface AppendMode {
 
 public inline val AppendMode.Companion.SEGMENTS: AppendMode get() = "segments".asDynamic().unsafeCast<AppendMode>()
 
-public inline val AppendMode.Companion.SEQUENCE: AppendMode get() = "sequence".asDynamic().unsafeCast<AppendMode>()
\ No newline at end of file
+public inline val AppendMode.Companion.SEQUENCE: AppendMode get() = "sequence".asDynamic().unsafeCast<AppendMode>()
diff --git a/libraries/stdlib/js/src/org.w3c/org.w3c.fetch.kt b/libraries/stdlib/js/src/org.w3c/org.w3c.fetch.kt
index 0b40aefca3f..00416254b3f 100644
--- a/libraries/stdlib/js/src/org.w3c/org.w3c.fetch.kt
+++ b/libraries/stdlib/js/src/org.w3c/org.w3c.fetch.kt
@@ -183,6 +183,7 @@ public inline fun ResponseInit(status: Short? = 200, statusText: String? = "OK",
 }
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface RequestType {
     companion object
@@ -205,6 +206,7 @@ public inline val RequestType.Companion.TRACK: RequestType get() = "track".asDyn
 public inline val RequestType.Companion.VIDEO: RequestType get() = "video".asDynamic().unsafeCast<RequestType>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface RequestDestination {
     companion object
@@ -241,6 +243,7 @@ public inline val RequestDestination.Companion.WORKER: RequestDestination get()
 public inline val RequestDestination.Companion.XSLT: RequestDestination get() = "xslt".asDynamic().unsafeCast<RequestDestination>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface RequestMode {
     companion object
@@ -255,6 +258,7 @@ public inline val RequestMode.Companion.NO_CORS: RequestMode get() = "no-cors".a
 public inline val RequestMode.Companion.CORS: RequestMode get() = "cors".asDynamic().unsafeCast<RequestMode>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface RequestCredentials {
     companion object
@@ -267,6 +271,7 @@ public inline val RequestCredentials.Companion.SAME_ORIGIN: RequestCredentials g
 public inline val RequestCredentials.Companion.INCLUDE: RequestCredentials get() = "include".asDynamic().unsafeCast<RequestCredentials>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface RequestCache {
     companion object
@@ -285,6 +290,7 @@ public inline val RequestCache.Companion.FORCE_CACHE: RequestCache get() = "forc
 public inline val RequestCache.Companion.ONLY_IF_CACHED: RequestCache get() = "only-if-cached".asDynamic().unsafeCast<RequestCache>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface RequestRedirect {
     companion object
@@ -297,6 +303,7 @@ public inline val RequestRedirect.Companion.ERROR: RequestRedirect get() = "erro
 public inline val RequestRedirect.Companion.MANUAL: RequestRedirect get() = "manual".asDynamic().unsafeCast<RequestRedirect>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface ResponseType {
     companion object
@@ -312,4 +319,4 @@ public inline val ResponseType.Companion.ERROR: ResponseType get() = "error".asD
 
 public inline val ResponseType.Companion.OPAQUE: ResponseType get() = "opaque".asDynamic().unsafeCast<ResponseType>()
 
-public inline val ResponseType.Companion.OPAQUEREDIRECT: ResponseType get() = "opaqueredirect".asDynamic().unsafeCast<ResponseType>()
\ No newline at end of file
+public inline val ResponseType.Companion.OPAQUEREDIRECT: ResponseType get() = "opaqueredirect".asDynamic().unsafeCast<ResponseType>()
diff --git a/libraries/stdlib/js/src/org.w3c/org.w3c.notifications.kt b/libraries/stdlib/js/src/org.w3c/org.w3c.notifications.kt
index ccb49723692..bed95468a62 100644
--- a/libraries/stdlib/js/src/org.w3c/org.w3c.notifications.kt
+++ b/libraries/stdlib/js/src/org.w3c/org.w3c.notifications.kt
@@ -208,6 +208,7 @@ public inline fun NotificationEventInit(notification: Notification?, action: Str
 }
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface NotificationPermission {
     companion object
@@ -220,6 +221,7 @@ public inline val NotificationPermission.Companion.DENIED: NotificationPermissio
 public inline val NotificationPermission.Companion.GRANTED: NotificationPermission get() = "granted".asDynamic().unsafeCast<NotificationPermission>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface NotificationDirection {
     companion object
@@ -229,4 +231,4 @@ public inline val NotificationDirection.Companion.AUTO: NotificationDirection ge
 
 public inline val NotificationDirection.Companion.LTR: NotificationDirection get() = "ltr".asDynamic().unsafeCast<NotificationDirection>()
 
-public inline val NotificationDirection.Companion.RTL: NotificationDirection get() = "rtl".asDynamic().unsafeCast<NotificationDirection>()
\ No newline at end of file
+public inline val NotificationDirection.Companion.RTL: NotificationDirection get() = "rtl".asDynamic().unsafeCast<NotificationDirection>()
diff --git a/libraries/stdlib/js/src/org.w3c/org.w3c.workers.kt b/libraries/stdlib/js/src/org.w3c/org.w3c.workers.kt
index 1dd2362197a..864c633562b 100644
--- a/libraries/stdlib/js/src/org.w3c/org.w3c.workers.kt
+++ b/libraries/stdlib/js/src/org.w3c/org.w3c.workers.kt
@@ -489,6 +489,7 @@ public external interface UnionMessagePortOrServiceWorker
 public external interface UnionClientOrMessagePortOrServiceWorker
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface ServiceWorkerState {
     companion object
@@ -505,6 +506,7 @@ public inline val ServiceWorkerState.Companion.ACTIVATED: ServiceWorkerState get
 public inline val ServiceWorkerState.Companion.REDUNDANT: ServiceWorkerState get() = "redundant".asDynamic().unsafeCast<ServiceWorkerState>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface FrameType {
     companion object
@@ -519,6 +521,7 @@ public inline val FrameType.Companion.NESTED: FrameType get() = "nested".asDynam
 public inline val FrameType.Companion.NONE: FrameType get() = "none".asDynamic().unsafeCast<FrameType>()
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface ClientType {
     companion object
@@ -530,4 +533,4 @@ public inline val ClientType.Companion.WORKER: ClientType get() = "worker".asDyn
 
 public inline val ClientType.Companion.SHAREDWORKER: ClientType get() = "sharedworker".asDynamic().unsafeCast<ClientType>()
 
-public inline val ClientType.Companion.ALL: ClientType get() = "all".asDynamic().unsafeCast<ClientType>()
\ No newline at end of file
+public inline val ClientType.Companion.ALL: ClientType get() = "all".asDynamic().unsafeCast<ClientType>()
diff --git a/libraries/stdlib/js/src/org.w3c/org.w3c.xhr.kt b/libraries/stdlib/js/src/org.w3c/org.w3c.xhr.kt
index d1959610866..916f42ec8f9 100644
--- a/libraries/stdlib/js/src/org.w3c/org.w3c.xhr.kt
+++ b/libraries/stdlib/js/src/org.w3c/org.w3c.xhr.kt
@@ -132,6 +132,7 @@ public inline fun ProgressEventInit(lengthComputable: Boolean? = false, loaded:
 }
 
 /* please, don't implement this interface! */
+@JsName("null")
 @Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
 public external interface XMLHttpRequestResponseType {
     companion object
@@ -147,4 +148,4 @@ public inline val XMLHttpRequestResponseType.Companion.DOCUMENT: XMLHttpRequestR
 
 public inline val XMLHttpRequestResponseType.Companion.JSON: XMLHttpRequestResponseType get() = "json".asDynamic().unsafeCast<XMLHttpRequestResponseType>()
 
-public inline val XMLHttpRequestResponseType.Companion.TEXT: XMLHttpRequestResponseType get() = "text".asDynamic().unsafeCast<XMLHttpRequestResponseType>()
\ No newline at end of file
+public inline val XMLHttpRequestResponseType.Companion.TEXT: XMLHttpRequestResponseType get() = "text".asDynamic().unsafeCast<XMLHttpRequestResponseType>()