4 ms·

It is an http header: X-UIDH added to http requests

• andymurd 11y ago
  It occurs to me that a mischievous person could easily write a Firefox plugin to (over)write that header with random garbage. If enough people used the plugin, it would render Verizon's data useless.
  • clort 11y ago
    except that the ISP is adding this header. They could (or do already?) just replace your header with their own..
    • yclept 11y ago
      Yep, and Verizon does. They will overwrite your header.