diff --git a/compiler/testData/codegen/box/intrinsics/throwableParamOrder.kt b/compiler/testData/codegen/box/intrinsics/throwableParamOrder.kt
index fe1f09305d4..7708a6de220 100644
--- a/compiler/testData/codegen/box/intrinsics/throwableParamOrder.kt
+++ b/compiler/testData/codegen/box/intrinsics/throwableParamOrder.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 var res = ""
 
 fun getM(): String {
diff --git a/compiler/testData/codegen/box/specialBuiltins/exceptionCause.kt b/compiler/testData/codegen/box/specialBuiltins/exceptionCause.kt
index e50e8bb11d1..cd0501bdf1d 100644
--- a/compiler/testData/codegen/box/specialBuiltins/exceptionCause.kt
+++ b/compiler/testData/codegen/box/specialBuiltins/exceptionCause.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 class CustomException : Throwable {
     constructor(message: String?, cause: Throwable?) : super(message, cause)
 
diff --git a/compiler/testData/codegen/box/specialBuiltins/throwable.kt b/compiler/testData/codegen/box/specialBuiltins/throwable.kt
index b9c1a57f325..e4040a63794 100644
--- a/compiler/testData/codegen/box/specialBuiltins/throwable.kt
+++ b/compiler/testData/codegen/box/specialBuiltins/throwable.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 fun box(): String {
     try {
         throw Throwable("OK", null)
diff --git a/compiler/testData/codegen/box/specialBuiltins/throwableCause.kt b/compiler/testData/codegen/box/specialBuiltins/throwableCause.kt
index 14ea9c9b413..ade7379bb50 100644
--- a/compiler/testData/codegen/box/specialBuiltins/throwableCause.kt
+++ b/compiler/testData/codegen/box/specialBuiltins/throwableCause.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 fun box(): String {
     var t = Throwable("O", Throwable("K"))
     if (t.message != "O" || t.cause?.message != "K") return "fail1"
diff --git a/compiler/testData/codegen/box/specialBuiltins/throwableComplex.kt b/compiler/testData/codegen/box/specialBuiltins/throwableComplex.kt
new file mode 100644
index 00000000000..094664b432d
--- /dev/null
+++ b/compiler/testData/codegen/box/specialBuiltins/throwableComplex.kt
@@ -0,0 +1,42 @@
+open class Base(message: String? = null, cause: Throwable? = null) : Throwable(message, cause)
+
+open class Base2(message: String? = null, cause: Throwable? = null): Base(message, cause)
+
+open class Override(message: String? = null, cause: Throwable? = null) : Base2(message, cause) {
+
+    var i = 0
+
+    override val message: String?
+        get() = "Override: " + super.message + "${i++}"
+}
+
+open class OverBase(message: String? = null, cause: Throwable? = null): Override(message, cause)
+
+open class OverOverride(message: String? = null, cause: Throwable? = null) : OverBase(message, cause) {
+
+    override val message: String?
+        get() = "OverOver: " + super.message + "${i++}"
+
+    override val cause: Throwable?
+        get() = super.cause ?: this
+
+}
+
+
+fun box(): String {
+    check(Base("O", Base("K")), "OK")
+    check(Override("OK"), "Override: OK0")
+    check(OverOverride("OK"), "OverOver: Override: OK01OverOver: Override: OK23")
+    return "OK"
+}
+
+
+fun check(t: Throwable, msg: String) {
+    try {
+        throw t
+    } catch (e: Throwable) {
+        val c = t.cause
+        val m = if (c != null) t.message!! + c.message!! else t.message!!
+        if (m != msg) throw AssertionError(m)
+    }
+}
\ No newline at end of file
diff --git a/compiler/testData/codegen/box/specialBuiltins/throwableImpl.kt b/compiler/testData/codegen/box/specialBuiltins/throwableImpl.kt
index 8343622751b..ad070a0298c 100644
--- a/compiler/testData/codegen/box/specialBuiltins/throwableImpl.kt
+++ b/compiler/testData/codegen/box/specialBuiltins/throwableImpl.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 class MyThrowable(message: String? = null, cause: Throwable? = null) : Throwable(message, cause) {
 
     override val message: String?
diff --git a/compiler/testData/codegen/box/specialBuiltins/throwableImplWithSecondaryConstructor.kt b/compiler/testData/codegen/box/specialBuiltins/throwableImplWithSecondaryConstructor.kt
index 60b85b9a046..afa627c4598 100644
--- a/compiler/testData/codegen/box/specialBuiltins/throwableImplWithSecondaryConstructor.kt
+++ b/compiler/testData/codegen/box/specialBuiltins/throwableImplWithSecondaryConstructor.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 class MyThrowable : Throwable {
     val x: String
 
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
index 0a344876fc0..0ae3db8aa93 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
@@ -21768,6 +21768,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             runTest("compiler/testData/codegen/box/specialBuiltins/throwableCause.kt");
         }
 
+        @TestMetadata("throwableComplex.kt")
+        public void testThrowableComplex() throws Exception {
+            runTest("compiler/testData/codegen/box/specialBuiltins/throwableComplex.kt");
+        }
+
         @TestMetadata("throwableImpl.kt")
         public void testThrowableImpl() throws Exception {
             runTest("compiler/testData/codegen/box/specialBuiltins/throwableImpl.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
index 8aee2cfbe96..2581c147a32 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
@@ -21768,6 +21768,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             runTest("compiler/testData/codegen/box/specialBuiltins/throwableCause.kt");
         }
 
+        @TestMetadata("throwableComplex.kt")
+        public void testThrowableComplex() throws Exception {
+            runTest("compiler/testData/codegen/box/specialBuiltins/throwableComplex.kt");
+        }
+
         @TestMetadata("throwableImpl.kt")
         public void testThrowableImpl() throws Exception {
             runTest("compiler/testData/codegen/box/specialBuiltins/throwableImpl.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
index 5b7e9f931e0..fe3afe86f3b 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
@@ -21773,6 +21773,11 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/specialBuiltins/throwableCause.kt");
         }
 
+        @TestMetadata("throwableComplex.kt")
+        public void testThrowableComplex() throws Exception {
+            runTest("compiler/testData/codegen/box/specialBuiltins/throwableComplex.kt");
+        }
+
         @TestMetadata("throwableImpl.kt")
         public void testThrowableImpl() throws Exception {
             runTest("compiler/testData/codegen/box/specialBuiltins/throwableImpl.kt");
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/IrJsCodegenBoxTestGenerated.java b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/IrJsCodegenBoxTestGenerated.java
index a19a09a9f4c..68fff3a18bd 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/IrJsCodegenBoxTestGenerated.java
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/IrJsCodegenBoxTestGenerated.java
@@ -19588,6 +19588,11 @@ public class IrJsCodegenBoxTestGenerated extends AbstractIrJsCodegenBoxTest {
             runTest("compiler/testData/codegen/box/specialBuiltins/throwableCause.kt");
         }
 
+        @TestMetadata("throwableComplex.kt")
+        public void testThrowableComplex() throws Exception {
+            runTest("compiler/testData/codegen/box/specialBuiltins/throwableComplex.kt");
+        }
+
         @TestMetadata("throwableImpl.kt")
         public void testThrowableImpl() throws Exception {
             runTest("compiler/testData/codegen/box/specialBuiltins/throwableImpl.kt");
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
index a37025a9dca..a005a243cbd 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
@@ -20633,6 +20633,11 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             runTest("compiler/testData/codegen/box/specialBuiltins/throwableCause.kt");
         }
 
+        @TestMetadata("throwableComplex.kt")
+        public void testThrowableComplex() throws Exception {
+            runTest("compiler/testData/codegen/box/specialBuiltins/throwableComplex.kt");
+        }
+
         @TestMetadata("throwableImpl.kt")
         public void testThrowableImpl() throws Exception {
             runTest("compiler/testData/codegen/box/specialBuiltins/throwableImpl.kt");
diff --git a/js/js.translator/testData/box/expression/try/kt22053.kt b/js/js.translator/testData/box/expression/try/kt22053.kt
index 4d3f4fea844..f849fdd05bd 100644
--- a/js/js.translator/testData/box/expression/try/kt22053.kt
+++ b/js/js.translator/testData/box/expression/try/kt22053.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // EXPECTED_REACHABLE_NODES: 1291
 package foo
 
diff --git a/js/js.translator/testData/box/jsCode/catchScope.kt b/js/js.translator/testData/box/jsCode/catchScope.kt
index adf7caf885d..87ee7ab3207 100644
--- a/js/js.translator/testData/box/jsCode/catchScope.kt
+++ b/js/js.translator/testData/box/jsCode/catchScope.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JS_IR
 // EXPECTED_REACHABLE_NODES: 1286
 package foo