window.devicePixelRatio polyfill

import "@mrhenry/core-web/modules/devicePixelRatio";

browsers

• Firefox:

  <18
• Firefox Android:

  <18
• IE:

  6 - 10
• Safari:

  4.0 - 9.1
• iOS Safari:

  <9.3

links

• documentation
• specification
• @mrhenry/polyfill-library

notes

• This polyfill just sets `devicePixelRatio` to 1 without attempting to measure it.
• Older versions of Firefox are known to incorrectly alter the DPR on user zoom, but we don't (currently) correct for this