diff --git a/tools/src/com.oracle.truffle.tools.chromeinspector/src/com/oracle/truffle/tools/chromeinspector/InspectorRuntime.java b/tools/src/com.oracle.truffle.tools.chromeinspector/src/com/oracle/truffle/tools/chromeinspector/InspectorRuntime.java
index acb6200aa749..1c32824024bf 100644
--- a/tools/src/com.oracle.truffle.tools.chromeinspector/src/com/oracle/truffle/tools/chromeinspector/InspectorRuntime.java
+++ b/tools/src/com.oracle.truffle.tools.chromeinspector/src/com/oracle/truffle/tools/chromeinspector/InspectorRuntime.java
@@ -511,6 +511,8 @@ public Void executeCommand() throws CommandProcessException {
                                         throw new CommandProcessException("Named range out of bounds.");
                                     }
                                     arr.put(indexRange.end() - indexRange.start());
+                                } else if (LanguageChecks.isJS(value.getOriginalLanguage())) {
+                                    arr.put(props.size() + 1); // +1 for __proto__
                                 } else {
                                     arr.put(props.size());
                                 }
@@ -530,7 +532,11 @@ public Void executeCommand() throws CommandProcessException {
                                 } else {
                                     arr.put(value.getArray().size());
                                 }
-                                arr.put(0);
+                                if (LanguageChecks.isJS(value.getOriginalLanguage())) {
+                                    arr.put(1); // +1 for __proto__
+                                } else {
+                                    arr.put(0);
+                                }
                                 result = new JSONObject();
                                 result.put("value", arr);
                             } else if (functionNoWS.equals(FUNCTION_GET_COLLECTION_NUM_PROPS)) {
@@ -546,6 +552,8 @@ public Void executeCommand() throws CommandProcessException {
                                         throw new CommandProcessException("Named range out of bounds.");
                                     }
                                     arr.put(indexRange.end() - indexRange.start());
+                                } else if (LanguageChecks.isJS(value.getOriginalLanguage())) {
+                                    arr.put(props.size() + 1); // +1 for __proto__
                                 } else {
                                     arr.put(props.size());
                                 }
@@ -628,8 +636,30 @@ public Void executeCommand() throws CommandProcessException {
                                         }
                                     }
                                 }
-                                String code = "(" + functionTrimmed + ")(" + ((value != null) ? value.getName() : "") + ")";
-                                DebugValue eval = suspendedInfo.getSuspendedEvent().getTopStackFrame().eval(code);
+                                StringBuilder code = new StringBuilder();
+                                code.append("(").append(functionTrimmed).append(").apply(").append(value != null ? value.getName() : "null");
+                                if (arguments != null) {
+                                    code.append(",[");
+                                    for (int i = 0; i < arguments.length(); i++) {
+                                        JSONObject arg = arguments.getJSONObject(i);
+                                        if (i > 0) {
+                                            code.append(",");
+                                        }
+                                        Object id = arg.opt("objectId");
+                                        if (id instanceof String) {
+                                            RemoteObject remoteArg = context.getRemoteObjectsHandler().getRemote((String) id);
+                                            if (remoteArg == null) {
+                                                throw new CommandProcessException("Cannot resolve argument by its objectId: " + id);
+                                            }
+                                            code.append(remoteArg.getDebugValue().getName());
+                                        } else {
+                                            code.append(arg.get("value"));
+                                        }
+                                    }
+                                    code.append("]");
+                                }
+                                code.append(")");
+                                DebugValue eval = suspendedInfo.getSuspendedEvent().getTopStackFrame().eval(code.toString());
                                 result = asResult(eval);
                             }
                             json.put("result", result);