diff --git a/lib/browser/api/web-contents.ts b/lib/browser/api/web-contents.ts
index b62ca2b9e2668..2b0017523b541 100644
--- a/lib/browser/api/web-contents.ts
+++ b/lib/browser/api/web-contents.ts
@@ -122,7 +122,12 @@ WebContents.prototype.postMessage = function (...args) {
 };
 
 WebContents.prototype.send = function (channel, ...args) {
-  return this.mainFrame.send(channel, ...args);
+  // Catch unhandled rejections if webFrameMain is disposed/unavailable
+  try {
+    return this.mainFrame.send(channel, ...args);
+  } catch (e) {
+    console.error(e);
+  }
 };
 
 WebContents.prototype._sendInternal = function (channel, ...args) {
diff --git a/shell/browser/api/electron_api_web_frame_main.cc b/shell/browser/api/electron_api_web_frame_main.cc
index d567a4cf09fe5..c5a5945ba0a2a 100644
--- a/shell/browser/api/electron_api_web_frame_main.cc
+++ b/shell/browser/api/electron_api_web_frame_main.cc
@@ -100,11 +100,7 @@ void WebFrameMain::MarkRenderFrameDisposed() {
 
 void WebFrameMain::UpdateRenderFrameHost(content::RenderFrameHost* rfh) {
   // Should only be called when swapping frames.
-  if (!render_frame_disposed_) {
-    DCHECK(render_frame_);
-  } else {
-    render_frame_disposed_ = false;
-  }
+  render_frame_disposed_ = false;
   render_frame_ = rfh;
   renderer_api_.reset();
 }
@@ -162,7 +158,7 @@ v8::Local<v8::Promise> WebFrameMain::ExecuteJavaScript(
 }
 
 bool WebFrameMain::Reload() {
-  if (render_frame_disposed_)
+  if (!CheckRenderFrame())
     return false;
   return render_frame_->Reload();
 }
@@ -178,7 +174,7 @@ void WebFrameMain::Send(v8::Isolate* isolate,
     return;
   }
 
-  if (render_frame_disposed_)
+  if (!CheckRenderFrame())
     return;
 
   GetRendererApi()->Message(internal, channel, std::move(message),