Quick tour

HTTP Switchboard: Very quick tour

Description of what is going on in the above snapshot of HTTP Switchboard matrix:

• Dark red means: expressly blacklisted.
• Dark green means: expressly whitelisted.
• Pale red and pale green means the cells are graylisted, which means they inherit their blacklist or whitelist status from a cell with a higher precedence.
• Precedence hierarchy is as follow, from highest precedence to lowest precedence:
  • Specific type/specific domain, like the 'cookie/radio-canada.ca' cell in the above picture.
  • Any type/specific domain, like the 'facebook.com' cell in the picture above.
  • Specific type/any domain, like the 'image' cell in the picture above.
  • Any type/any domain, which is essentially the 'master switch'.
• In the top left corner, the 'all' cell (the "master switch") is dark red, which means: "blacklist all graylisted cells by default".
• At the top, the 'image' cell is dark green, which means: "override the 'master switch' state and whitelist all images by default". The little green half-circle on the left of the cell means: "remember my whitelist state next time chromium is launched".
• On the left, second row, the 'radio-canada.ca' cell is dark green, which means: "override 'master switch' and 'typed' cells states and whitelist everything from 'radio-canada.ca' and its subdomains". Notice there is no little half-circle on this cell, which means the cell will be back to its natural graylist status next time chromium is launched. All cells are naturally graylisted, execpt for the 'master switch'.