diff --git a/packages/driver/src/cypress/command_queue.ts b/packages/driver/src/cypress/command_queue.ts
index ec0748c0a2a5..cbfaa3792e39 100644
--- a/packages/driver/src/cypress/command_queue.ts
+++ b/packages/driver/src/cypress/command_queue.ts
@@ -259,7 +259,8 @@ export class CommandQueue extends Queue<Command> {
       // start at 0 index if one is not already set
       let index = this.state('index') || this.state('index', 0)
 
-      // if at the end of the queue in a secondary domain,
+      // if at the end of the queue when not auto-running, pause will be true
+      // but since there's nothing left in the queue to move things forward,
       // ignore and reset the pause, then let the queue finish
       if (!autoRun && pause && !this.at(index)) {
         pause = false
diff --git a/packages/extension/app/background.js b/packages/extension/app/background.js
index a1af0e2531ca..b63de47a06ce 100644
--- a/packages/extension/app/background.js
+++ b/packages/extension/app/background.js
@@ -50,10 +50,16 @@ const connect = function (host, path, extraOpts) {
   })
 
   const listenToOnBeforeHeaders = once(() => {
+    // adds a header to the request to mark it as a request for the AUT frame
+    // itself, so the proxy can utilize that for injection purposes
     browser.webRequest.onBeforeSendHeaders.addListener((details) => {
       if (
+        // parentFrameId: 0 means the parent is the top-level, so if it isn't
+        // 0, it's nested inside the AUT and can't be the AUT itself
         details.parentFrameId !== 0
+        // isn't an iframe
         || details.type !== 'sub_frame'
+        // is the spec frame, not the AUT
         || details.url.includes('__cypress')
       ) return
 
diff --git a/packages/server/lib/browsers/chrome.ts b/packages/server/lib/browsers/chrome.ts
index 9567af5177ad..29bdc1ebf7a1 100644
--- a/packages/server/lib/browsers/chrome.ts
+++ b/packages/server/lib/browsers/chrome.ts
@@ -332,13 +332,13 @@ let frameTree
 
 const _onBrowserPreRequest = (client) => {
   return async (prerequest) => {
-  // this gets the frame tree ahead of the Fetch.requestPaused event, because
-  // the CDP is tied up during that event and can't be utilized. however,
-  // we avoid the overhead if it's not possible that the request will be for
-  // the AUT frame
+    // this gets the frame tree ahead of the Fetch.requestPaused event, because
+    // the CDP is tied up during that event and can't be utilized. however,
+    // we avoid the overhead if it's not possible that the request will be for
+    // the AUT frame
     if (
       prerequest.originalResourceType !== 'Document'
-    || prerequest.url.includes('__cypress')
+      || prerequest.url.includes('__cypress')
     ) {
       return
     }
@@ -397,8 +397,11 @@ const _getAUTFrame = () => {
 const _handlePausedRequests = async (client) => {
   await client.send('Fetch.enable')
 
+  // adds a header to the request to mark it as a request for the AUT frame
+  // itself, so the proxy can utilize that for injection purposes
   client.on('Fetch.requestPaused', (params: Protocol.Fetch.RequestPausedEvent) => {
     if (
+      // is a script, stylesheet, image, etc
       params.resourceType !== 'Document'
       || _getAUTFrame().id !== params.frameId
     ) {
diff --git a/packages/server/lib/browsers/electron.js b/packages/server/lib/browsers/electron.js
index 4e1e7355d39e..d9df9a71dc4a 100644
--- a/packages/server/lib/browsers/electron.js
+++ b/packages/server/lib/browsers/electron.js
@@ -356,10 +356,15 @@ module.exports = {
       return false
     }
 
+    // adds a header to the request to mark it as a request for the AUT frame
+    // itself, so the proxy can utilize that for injection purposes
     win.webContents.session.webRequest.onBeforeSendHeaders((details, cb) => {
       if (
+        // isn't an iframe
         details.resourceType !== 'subFrame'
+        // the top-level frame or a nested frame
         || !isFirstLevelIFrame(details.frame)
+        // is the spec frame, not the AUT
         || details.url.includes('__cypress')
       ) {
         cb({})