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• Web midi API and multiple simultaneous notes

  I am discovering right now the web midi API with a connected USB piano. Following this guide (and reading the documentation) I understand that you can assign a function to the event "onmidimessage".

  My problem is that this function is called for every pressed/released single note, so how should I deal with multiple notes pressed at the same time, with the purpose of playing a chord?
• Chrome Extension fetch function not sending cookies

  I have a chrome extension that does an ajax call using the fetch function to my server running laravel.

  manifest perfmissions

  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "webNavigation",
    "activeTab",
    "tabs",
    "cookies",
    "<all_urls>"
  ],
  

  fetch call

  fetch(this.url, {
    credentials: 'include',
    method: 'post',
    headers: {
      "Content-type": "application/x-www-form-urlencoded"
    },
    body: encodeDataToURL(telemetry)
  })
  .then(function (data) {
    console.log('Request succeeded with JSON response', data);
  })
  .catch(function (error) {
    console.log('Request failed', error);
  });
  

  Cookies

  siusession=eyJpdiI6InlRS2wyb1BCZnJSSGtUaXVRelV4M3c9PSIsInZhbHVlIjoiRThteUk4MmVxeXV6a1N5ZUxTaFpxcUtSazJQRE1ZUUNQUWlBREVTdHRQM2pjNEVJUVUxd3gwM1JZMDNjOXR2TyIsIm1hYyI6ImUwMGQyNmAAhwQ3YWQ4YzRhOWVhYTk2ZjI2NDgwNTljNDE2YWU5NTdlZWM1MThiZWJjYzI3NmZjZWRhOGRlMzIifQ%3D%3D; expires=Tue, 25-Sep-2018 04:28:56 GMT; Max-Age=28800; path=/; secure; httponly; samesite=lax

  I have a opened session on my browser to that domain, which makes me having cookies with the Session ID and XSRF-TOKEN.

  The problem is, it doesn't send the cookies with the call. And on firefox, the same exact code and manifest it does send the browser cookies with the call.

  What can be wrong? Does chrome require some sort of different permissions or another way to make the call including cookies?
• Converting Chrome Extension to Edge Extension, Permissions issue

  I have a chrome extension I have made and I want to convert it to Edge using the Microsoft Edge Extension Converter, everything works fine except for the popups tabs and cookies permissions

  "content_scripts": [
      {
          "matches": [
              "http://www.website.com/*"
          ],
          "js": [
              "jquery-3.1.1.min.js",
              "startup.js",
          ],
          "css": [
              "font-awesome.css"
          ],
          "run_at": "document_end",
          "permissions": [
              "cookies",
              "tabs"
          ]
      }
  ],
  

  If i were to remove

  "permissions": [
              "cookies",
              "tabs"
          ]
  

  The extension will load however the communication between the popup and the window will not work, but if i leave the code in i get the following error

  Manifest parsing error: Invalid field 'permissions' found in 'content_scripts'.
• Selenium Hub cannot handle test queue when deployed with Kubernetes

  I'm currently running in to this exception when I run several tests in parallel against a selenium grid that is deployed using K8s. I have deployed clusters in both AWS and Azure and received the same error. The error occurs when I try to run more tests than there are nodes, I can run a few tests successfully, then after a short amount of time, it will fail all of the remaining tests with this error.

  OpenQA.Selenium.WebDriverException : A exception with a null response was thrown sending an HTTP request to the remote WebDriver server for URL xxxxxx.xxx.xxx/wd/hub/session. The status of the exception was ConnectionClosed, and the message was: The underlying connection was closed: The connection was closed unexpectedly.

  I have adjusted timeouts on the selenium hub(browser timeout, timeout, newsesssiontimeout) as well as the command timeouts from the remotewebdriver and nothing changes. I also do not get the error when I test locally.

  Here is my current stack.

  • RemoteWebdriver: 3.14.0
  • Selenium Hub : 3.14.0
  • Selenium Node : 3.14.0
  • Chrome : 69
  • C#/Nunit
  • AKS/EKS

  Code:

      [TestCaseSource(typeof(MyFactoryClass), nameof(MyFactoryClass.TestCases))]
      public void ZaleniumTest(int x)
      {
          var caps = new DesiredCapabilities();
          caps.SetCapability("browserName", "chrome");
          var driver =
              new RemoteWebDriver(new Uri(Url), caps, TimeSpan.FromSeconds(1200)) {Url = "http://www.google.com"};
          driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(1200);
          var query = driver.FindElement(By.Name("q"));
          query.SendKeys("Cheese");
          query.Submit();
          System.Threading.Thread.Sleep(3000);
          Assert.IsTrue(driver.Title.Contains("Google"));
          driver.Quit();
      }      
  

  Here are the commands that I run to deploy the grid:

      kubectl run selenium-hub --image selenium/hub:latest --port 4444
      kubectl expose deployment selenium-hub --type=LoadBalancer
      kubectl run selenium-node-chrome --image selenium/node-chrome:latest --env="HUB_PORT_4444_TCP_ADDR=selenium-hub" --env="HUB_PORT_4444_TCP_PORT=4444"
  

  With this simple grid set up(1 hub 1 chrome node) I try to run 20 tests with the expectation that the tests will be queued up. After about 10 passing tests, the test run will fail and produce that error.

  I am looking for the correct places to add a wait or a time out so that we can handle the test queue correctly.

  Thanks in advance.
• Geb - Emulate key press CTRL + M

  I am writing automated functional tests using Geb and Spock. Our web application has an applet to upload some information. When I press the upload button the applet comes up. I am trying to emulate key press CTRL + M so I can specify a test data for upload. Please let me know if there is any way I can achieve this through Geb. I tried First I clicked on the web element and then this line of code but nothing happened. web element << Keys.chord(Keys.CONTROL, "M)

  Any help is appreciated thanks.
• PermissionError after Lost UI shared context

  I'm getting a permission error when I try to delete a file, but only if the python script has tripped a Lost UI shared context warning previously.

  Here are the error messages:

  ERROR:gpu_process_transport_factory.cc(1016)] Lost UI shared context.
  
  PermissionError: [WinError 32] The process cannot access the file
      because it is being used by another process 
  

  Interestingly, when the Lost UI shared context warning message occurs, selenium seems to automatically re instantiate chrome windows - when I run it in foreground a new window is created for each Lost UI shared context warning, and the orphaned windows persist. I am not explicitly creating the new chrome windows, some other process is, presumably selenium or chrome driver.

  I am guessing that somehow the file I cannot delete is attached to one of the orphaned processes, but I can't seem to figure out how to disconnect it so I can delete it, which I need to do for my code to function.

  Solving the Lost UI shared context warning is not important to me, only inasmuch as it may be the cause of the permission error.

  Thanks for any help.
• Hide div inside (e.g. Twitter) shadow-dom with javascript

  Using TamperMonkey to streamline page view on my side, and wish to hide part of the externally-sourced Twitter card(s) from printing. The image in the EmbeddedTweet does not print anyway, and leaves a large empty rectangle that wastes valuable space.

  The DOM looks like the image below - how would I target the DIV with class SummaryCard-image (green arrow)? It doesn't matter to me if the DIV is removed from the DOM, or just hidden with CSS.

  I have tried the below methods, which do not work:

  (1) Injecting CSS with .SummaryCard-image{display:none !important;}

  (2) jQuery: $('.SummaryCard-image').remove();

  $('.SummaryCard-image').length returns 0

  (Note the #shadow-root (open), 2nd element from the top)

  
• How do I maintain angular interactivity in an SVG loaded in an object tag? (I can't load it in-line because the SVG will change depending on the page)

  I have an SVG that contains 3 images inside of it. One is a map-like image that takes up the full size. Two others are pins for the map. Each pin image is wrapped in an a tag that has an ng-click event, which I would like to fire when the pin is clicked.

  I can't put the SVG in-line because I need the page to load a different SVG depending on the situation (a different map SVG for each location, for example). The SVG with angular functions great when I put the SVG in-line. However, when loading it via an object, embed, iframe, or svg+use tag, the angular doesn't function and the pins are not clickable.

  I believe this is due to the shadow dom, which I admittedly have very little knowledge of. I've tried reading documentation on the shadow dom and trying to change the object tag's shadow dom to an "open" mode, but it didn't seem to work.

  So the question: How do I maintain angular functionality in an SVG if I cannot include it as in-line HTML?

  I am fairly new to SVG's, so there may be some SVG sins in what I'm trying to do here. Any and all advice is much appreciated.
• Can I style input[type=date] shadow DOM in Firefox

  I know there exists shadow DOM elements for Chrome (::-webkit-clear-button, ::-webkit-datetime-edit, etc), but do they exist for Firefox? I can't seem to access the shadow dom in FF Dev Tools.