--- a/js/src/debugger/Debugger.cpp
+++ b/js/src/debugger/Debugger.cpp
@@ -891,35 +891,31 @@ bool DebugAPI::slowPathOnResumeFrame(JSC
 
   Rooted<AbstractGeneratorObject*> genObj(
       cx, GetGeneratorObjectForFrame(cx, frame));
   MOZ_ASSERT(genObj);
 
   // For each debugger, if there is an existing Debugger.Frame object for the
   // resumed `frame`, update it with the new frame pointer and make sure the
   // frame is observable.
+  FrameIter iter(cx);
+  MOZ_ASSERT(iter.abstractFramePtr() == frame);
   for (Realm::DebuggerVectorEntry& entry : frame.global()->getDebuggers()) {
     Debugger* dbg = entry.dbg;
     if (Debugger::GeneratorWeakMap::Ptr generatorEntry =
             dbg->generatorFrames.lookup(genObj)) {
       DebuggerFrame* frameObj = generatorEntry->value();
       MOZ_ASSERT(&frameObj->unwrappedGenerator() == genObj);
       if (!dbg->frames.putNew(frame, frameObj)) {
         ReportOutOfMemory(cx);
         return false;
       }
-
-      FrameIter iter(cx);
-      MOZ_ASSERT(iter.abstractFramePtr() == frame);
       if (!frameObj->resume(iter)) {
         return false;
       }
-      if (!Debugger::ensureExecutionObservabilityOfFrame(cx, frame)) {
-        return false;
-      }
     }
   }
 
   return slowPathOnEnterFrame(cx, frame);
 }
 
 /* static */
 NativeResumeMode DebugAPI::slowPathOnNativeCall(JSContext* cx,