How to enable WebGL in Chrome

When using Chrome for Selenium tests, the chromedriver binary will be used to control Chrome. To debug problems that stem from Selenium's Chrome and/or Chromedriver, you might want to enable logging for the chromedriver itself. Here is how.

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Applications often show or hide elements based on viewport dimensions, or may have components that behave differently (like mobile vs desktop navigation menus).
Since you want your integration tests to behave consistently, you want to set a specif...

Here is how to start your Rails application to accept both HTTP and HTTPS in development.

1. gem install passenger

2. Create a [self-signed SSL certificate](https://makandracards.com/makandra/15901-howto-create-a-self-signed-certificate...

Chrome has discontinued support for 32-Bit Linux builds and this might break your apt-get update.

To fix this, you need to update your APT source. This command does that automagically for you:

sudo sed -i -e 's/deb http/deb [arch=amd64] ht...

Chromedriver (or selenium-webdriver?) will not reliably scroll elements into view before clicking them, and actually not click the element because of that.

We've seen this happen for elements which are just barely in the viewport (e.g. the uppe...

If you're experiencing problems with your Google Chrome installation after an update, it might help downgrading Chrome to check if the problem disappears. Keep in mind though that running outdated software, especially web browsers, is in most case...

Having your site run on SSL is worthless when you include content over an unsafe connection (HTTP).

Here is how to hunt down mixed content with Firefox.

How to enable mixed content alerts

If your Firefox does not warn you about mixed content ...

Your development machine is usually on a very good network connection.
To test how your application behaves on a slow network (e.g. mobile), you can simulate limited bandwidth.

Chrome

• Open the dev tools (Ctrl+Shift+I or F12) and switch to ...

So you downloaded a theme for Chrome a while ago and don't remember which one it is?

You can go to chrome://settings/appearance (on Chrome 61+) to see the theme's name, and click a link to open it in the Chrome Web Store.

If you are on an olde...