fix: make sure inner OOPIFs can be attached to

lib/puppeteer/execution_context.rb

@@ -2,7 +2,7 @@ class Puppeteer::ExecutionContext
   include Puppeteer::IfPresent
   using Puppeteer::DefineAsyncMethod
 
-  EVALUATION_SCRIPT_URL = '__puppeteer_evaluation_script__'
+  EVALUATION_SCRIPT_URL = 'pprt://__puppeteer_evaluation_script__'
   SOURCE_URL_REGEX = /^[\040\t]*\/\/[@#] sourceURL=\s*(\S*?)\s*$/m
 
   # @param client [Puppeteer::CDPSession]

lib/puppeteer/frame_manager.rb

@@ -71,11 +71,17 @@ def initialize(client, page, ignore_https_errors, timeout_settings)
   private def init(cdp_session = nil)
     client = cdp_session || @client
 
-    results = await_all(
+    promises = [
       client.async_send_message('Page.enable'),
       client.async_send_message('Page.getFrameTree'),
-    )
-    frame_tree = results.last['frameTree']
+      cdp_session&.async_send_message('Target.setAutoAttach', {
+        autoAttach: true,
+        waitForDebuggerOnStart: false,
+        flatten: true,
+      })
+    ].compact
+    results = await_all(*promises)
+    frame_tree = results[1]['frameTree']
     handle_frame_tree(client, frame_tree)
     await_all(
       client.async_send_message('Page.setLifecycleEventsEnabled', enabled: true),

lib/puppeteer/page.rb

@@ -814,6 +814,10 @@ def wait_for_frame(url: nil, predicate: nil, timeout: nil)
         predicate
       end
 
+    frames.each do |frame|
+      return frame if frame_predicate.call(frame)
+    end
+
     wait_for_frame_manager_event(
       FrameManagerEmittedEvents::FrameAttached,
       FrameManagerEmittedEvents::FrameNavigated,

spec/assets/inner-frame1.html

@@ -0,0 +1,10 @@
+<script>
+  window.addEventListener('DOMContentLoaded', () => {
+    const iframe = document.createElement('iframe');
+    const url = new URL(location.href);
+    url.hostname = 'inner-frame2.test';
+    url.pathname = '/inner-frame2.html';
+    iframe.src = url.toString();
+    document.body.appendChild(iframe);
+  }, false);
+</script>

spec/assets/inner-frame2.html

@@ -0,0 +1 @@
+<button>click</button>

spec/assets/main-frame.html

@@ -0,0 +1,10 @@
+<script>
+  window.addEventListener('DOMContentLoaded', () => {
+    const iframe = document.createElement('iframe');
+    const url = new URL(location.href);
+    url.hostname = 'inner-frame1.test';
+    url.pathname = '/inner-frame1.html';
+    iframe.src = url.toString();
+    document.body.appendChild(iframe);
+  }, false);
+</script>

spec/integration/oopif_spec.rb

@@ -145,6 +145,16 @@ def oopifs(context)
     expect(page.frames.size).to eq(2)
   end
 
+  it 'should wait for inner OOPIFs' do
+    predicate = -> (frame) { frame.url&.end_with?('/inner-frame2.html') }
+    frame2 = page.wait_for_frame(predicate: predicate) do
+      page.goto("http://mainframe:#{server_port}/main-frame.html")
+    end
+    expect(oopifs(browser_context).size).to eq(2)
+    expect(page.frames.count { |frame| frame.oop_frame? }).to eq(2)
+    expect(frame2.evaluate('() => document.querySelectorAll("button").length')).to eq(1)
+  end
+
   it 'should load oopif iframes with subresources and request interception' do
     predicate = -> (frame) { frame.url&.end_with?('/oopif.html') }
     frame_promise = page.async_wait_for_frame(predicate: predicate)
@@ -211,4 +221,12 @@ def oopifs(context)
     expect(result_bounding_box.x).to be > 150 # padding + margin + border left
     expect(result_bounding_box.y).to be > 150 # padding + margin + border top
   end
+
+  it 'should resolve immediately if the frame already exists' do
+    page.goto(server_empty_page)
+    attach_frame(page, 'frame2', "#{server_cross_process_prefix}/empty.html")
+    predicate = ->(frame) { frame.url&.end_with?('/empty.html') }
+    frame = page.wait_for_frame(predicate: predicate)
+    expect(frame.url).to end_with("/empty.html")
+  end
 end

spec/spec_helper.rb

@@ -78,6 +78,7 @@ def firefox?
     if example.metadata[:enable_site_per_process_flag]
       args = launch_options[:args] || []
       args << '--site-per-process'
+      args << '--host-rules=MAP * 127.0.0.1'
       launch_options[:args] = args
     end
 
@@ -150,7 +151,7 @@ def default_launch_options
   config.include PuppeteerMethods, type: :puppeteer
 
   test_with_sinatra = Module.new do
-    attr_reader :server_prefix, :server_cross_process_prefix, :server_empty_page, :sinatra
+    attr_reader :server_port, :server_prefix, :server_cross_process_prefix, :server_empty_page, :sinatra
   end
   config.include(test_with_sinatra, sinatra: true)
   config.around(sinatra: true) do |example|
@@ -163,8 +164,9 @@ def default_launch_options
     sinatra_app.set(:quiet, true)
     sinatra_app.set(:public_folder, File.join(__dir__, 'assets'))
     sinatra_app.set(:logging, false)
-    @server_prefix = "http://localhost:4567"
-    @server_cross_process_prefix = "http://127.0.0.1:4567"
+    @server_port = 4567
+    @server_prefix = "http://localhost:#{@server_port}"
+    @server_cross_process_prefix = "http://127.0.0.1:#{@server_port}"
     @server_empty_page = "#{@server_prefix}/empty.html"
 
     sinatra_app.get('/_ping') { '_pong' }