diff --git a/packages/puppeteer/src/axePuppeteer.ts b/packages/puppeteer/src/axePuppeteer.ts
index adb56b88..501945a6 100644
--- a/packages/puppeteer/src/axePuppeteer.ts
+++ b/packages/puppeteer/src/axePuppeteer.ts
@@ -1,6 +1,6 @@
 import * as Axe from 'axe-core';
 import { ElementHandle, Frame, JSONObject, Page } from 'puppeteer';
-import { pageIsLoaded, runAxe } from './browser';
+import { pageIsLoaded, runAxe, configureAxe } from './browser';
 import { AnalyzeCB } from './types';
 
 function arrayify<T>(src: T | T[]): T[] {
@@ -11,27 +11,28 @@ function arrayify<T>(src: T | T[]): T[] {
 }
 
 interface IInjectAxeArgs {
-  source?: string;
+  source?: string | Function;
   selector: string;
   logOnError?: boolean;
+  args?: any[];
 }
 
-function injectAxeModule(frame: Frame): Promise<void> {
+function injectJSModule(frame: Frame): Promise<void> {
   return frame.addScriptTag({
     path: require.resolve('axe-core')
   });
 }
 
-function injectAxeString(frame: Frame, source: string): Promise<void> {
-  return frame.evaluate(source);
+function injectJSSource(frame: Frame, source: string | Function, args: any[] = []): Promise<void> {
+  return frame.evaluate(source as any, ...args);
 }
 
-async function injectAxe(frame: Frame, {source, selector, logOnError}: IInjectAxeArgs): Promise<void> {
+async function injectJS(frame: Frame, {source, selector, logOnError, args}: IInjectAxeArgs): Promise<void> {
   const frames = await frame.$$(selector);
   const injections = [];
   for (const frameElement of frames) {
     const subFrame = await frameElement.contentFrame();
-    const p = injectAxe(subFrame as Frame, { source, selector, logOnError: true});
+    const p = injectJS(subFrame as Frame, { source, selector, args, logOnError: true});
     injections.push(p);
   }
 
@@ -42,9 +43,9 @@ async function injectAxe(frame: Frame, {source, selector, logOnError}: IInjectAx
 
   let injectP: Promise<void>;
   if (!source) {
-    injectP = injectAxeModule(frame);
+    injectP = injectJSModule(frame);
   } else {
-    injectP = injectAxeString(frame, source);
+    injectP = injectJSSource(frame, source, args);
   }
 
   if (logOnError) {
@@ -217,12 +218,13 @@ export class AxePuppeteer {
     try {
       await ensureFrameReady(this.frame);
 
-      await injectAxe(this.frame, { source: this.source, selector: this.iframeSelector()});
+      await injectJS(this.frame, { source: this.source, selector: this.iframeSelector()});
+
+      await injectJS(this.frame, { source: configureAxe, selector: this.iframeSelector(), args: [this.config] });
 
       const context = normalizeContext(this.includes, this.excludes);
       const axeResults = await this.frame.evaluate(
         runAxe,
-        this.config as JSONObject,
         context as JSONObject,
         this.axeOptions as JSONObject
       );
diff --git a/packages/puppeteer/src/browser.ts b/packages/puppeteer/src/browser.ts
index 2c4736fc..1c003d54 100644
--- a/packages/puppeteer/src/browser.ts
+++ b/packages/puppeteer/src/browser.ts
@@ -13,26 +13,25 @@ declare global {
 
 // Defined at top-level to clarify that it can't capture variables from outer scope.
 export function runAxe(
-  config?: Axe.Spec,
   context?: Axe.ElementContext,
   options?: Axe.RunOptions
 ): Promise<Axe.AxeResults> {
-  if (config) {
-    window.axe.configure(config);
-  }
-
-  // This prevents axe from running in iframes.
-  // TODO: Uncomment when that is fixed in axe-core https://github.com/dequelabs/axe-core/issues/2340
-  // const brandingConfig = {
-  //   branding: {
-  //     application: 'axe-puppeteer'
-  //   }
-  // };
-  // window.axe.configure(brandingConfig);
-
   return window.axe.run(context || document, options || {});
 }
 
 export function pageIsLoaded(): boolean {
   return document.readyState === 'complete';
 }
+
+export function configureAxe(config?: Axe.Spec) {
+  if (config) {
+    window.axe.configure(config);
+  }
+
+  const brandingConfig = {
+    branding: {
+      application: 'axe-puppeteer'
+    }
+  };
+  window.axe.configure(brandingConfig);
+}
diff --git a/packages/puppeteer/test/fixtures/frames/bar.html b/packages/puppeteer/test/fixtures/frames/bar.html
index 3b816e7b..b199bb80 100644
--- a/packages/puppeteer/test/fixtures/frames/bar.html
+++ b/packages/puppeteer/test/fixtures/frames/bar.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
   <head>
     <title>Bar</title>
   </head>
diff --git a/packages/puppeteer/test/fixtures/frames/baz.html b/packages/puppeteer/test/fixtures/frames/baz.html
index b5f94320..1742ccd7 100644
--- a/packages/puppeteer/test/fixtures/frames/baz.html
+++ b/packages/puppeteer/test/fixtures/frames/baz.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
   <head>
     <title>Baz</title>
   </head>
diff --git a/packages/puppeteer/test/fixtures/frames/foo.html b/packages/puppeteer/test/fixtures/frames/foo.html
index 3c89b56b..0bb2811d 100644
--- a/packages/puppeteer/test/fixtures/frames/foo.html
+++ b/packages/puppeteer/test/fixtures/frames/foo.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
   <head>
     <title>Foo</title>
   </head>
diff --git a/packages/puppeteer/test/fixtures/nested-frames.html b/packages/puppeteer/test/fixtures/nested-frames.html
index 4a9b43d6..28d8470d 100644
--- a/packages/puppeteer/test/fixtures/nested-frames.html
+++ b/packages/puppeteer/test/fixtures/nested-frames.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
   <head>
     <title>Nested Frames</title>
   </head>
diff --git a/packages/puppeteer/test/integration/doc-dylang.test.ts b/packages/puppeteer/test/integration/doc-dylang.test.ts
index cfe8b6cc..dafa759d 100644
--- a/packages/puppeteer/test/integration/doc-dylang.test.ts
+++ b/packages/puppeteer/test/integration/doc-dylang.test.ts
@@ -3,8 +3,13 @@
 
 import { expect } from 'chai';
 import Puppeteer from 'puppeteer';
+import * as path from 'path';
 import AxePuppeteer from '../../src/index';
+import Axe from 'axe-core';
 import { customConfig, fixtureFilePath } from '../utils';
+import express from 'express';
+import { createServer } from 'http';
+import testListen from 'test-listen';
 
 describe('doc-dylang.html', function () {
   before(async function () {
@@ -19,6 +24,20 @@ describe('doc-dylang.html', function () {
   after(async function () {
     await this.browser.close();
   });
+  before(async function () {
+    // const app: express.Application = express()
+    const app: express.Application = express();
+    app.use(express.static(path.resolve(__dirname,  '..', 'fixtures')));
+    this.server = createServer(app);
+    this.addr = await testListen(this.server);
+
+    this.fixtureFileURL = (filename: string): string => {
+      return `${this.addr}/${filename}`;
+    };
+  });
+  after(function () {
+    this.server.close();
+  });
   beforeEach(async function () {
     this.page = await this.browser.newPage();
   });
@@ -26,13 +45,10 @@ describe('doc-dylang.html', function () {
     await this.page.close();
   });
 
-  // Fails since we can't set branding due to a bug.
-  // TODO: Run once we fix setting branding https://github.com/dequelabs/axe-core/issues/2340
-  it.skip('should find violations with customized helpUrl', async function () {
-    const file = fixtureFilePath('doc-dylang.html');
+  it('should find violations with customized helpUrl', async function () {
     const config = await customConfig();
 
-    await this.page.goto(`file://${file}`);
+    await this.page.goto(this.fixtureFileURL('doc-dylang.html'));
 
     const results = await new AxePuppeteer(this.page)
       .configure(config)
@@ -46,4 +62,21 @@ describe('doc-dylang.html', function () {
     ).to.not.eql(-1);
     expect(results.passes).to.have.lengthOf(0);
   });
+
+
+  it('configures in nested frames', async function() {
+    await this.page.goto(this.fixtureFileURL('nested-frames.html'))
+
+    const results = await new AxePuppeteer(this.page)
+      .configure(await customConfig())
+      .withRules(['dylang'])
+      .analyze()
+
+    expect(results.violations.find((r: Axe.Result) => r.id === 'dylang'))
+      .to.not.be.undefined
+    expect(results.violations.find((r: Axe.Result) => r.id === 'dylang'))
+      .to.have.property('nodes')
+      .and.to.have.lengthOf(4)
+  })
+
 });
diff --git a/packages/puppeteer/test/usage.test.ts b/packages/puppeteer/test/usage.test.ts
index d1e24b5d..e98f4003 100644
--- a/packages/puppeteer/test/usage.test.ts
+++ b/packages/puppeteer/test/usage.test.ts
@@ -8,6 +8,7 @@ import Puppeteer from 'puppeteer';
 import * as sinon from 'sinon';
 import testListen from 'test-listen';
 import AxePuppeteer, { loadPage } from '../src/index';
+import { customConfig } from './utils';
 
 type SinonSpy = sinon.SinonSpy;
 type Frame = Puppeteer.Frame;
@@ -169,20 +170,12 @@ describe('AxePuppeteer', function () {
     const results = await new AxePuppeteer(this.page)
       .analyze()
 
-    const flatResults = [
-      ...results.passes,
-      ...results.incomplete,
-      ...results.inapplicable,
-      ...results.violations
-    ]
-
 
     expect(results.violations.find((r: Axe.Result) => r.id === 'label'))
       .to.not.be.undefined
   })
 
-
-  it('injects custom axe source into nexted frames', async function () {
+  it('injects custom axe source into nested frames', async function () {
     const axeSource = `
       window.axe = {
         run: () => Promise.resolve({}),