IITC plugin: Tile grid lines fix

fix-tiles-gap.user.js

// ==UserScript==
// @id             fix-tiles-gap
// @name           IITC plugin: Tile grid lines fix
// @category       Fix
// @version        0.1
// @description    Workaround for 1px-gap between tiles (https://github.com/Leaflet/Leaflet/issues/6101#issuecomment-480593514)
// @namespace      https://github.com/johnd0e
// @include        https://intel.ingress.com/*
// @grant          none
// ==/UserScript==


function wrapper(plugin_info) {
// ensure plugin framework is there, even if iitc is not yet loaded
if(typeof window.plugin !== 'function') window.plugin = function() {};

function setup () {
  /* 
   * Workaround for 1px lines appearing in some browsers due to fractional transforms
   * and resulting anti-aliasing.
   * https://github.com/Leaflet/Leaflet/issues/3575
   */
  (function (_initTile) {
    L.GridLayer.include({
      _initTile: function (tile) {
        _initTile.call(this, tile);

        var tileSize = this.getTileSize();

        tile.style.width = tileSize.x + 1 + 'px';
        tile.style.height = tileSize.y + 1 + 'px';
      }
    });
  })(L.GridLayer.prototype._initTile)
}
setup.priority = 'high';

setup.info = plugin_info; //add the script info data to the function as a property
if(!window.bootPlugins) window.bootPlugins = [];
window.bootPlugins.push(setup);
// if IITC has already booted, immediately run the 'setup' function
if(window.iitcLoaded && typeof setup === 'function') setup();
} // wrapper end
// inject code into site context
var script = document.createElement('script');
var info = {};
if (typeof GM_info !== 'undefined' && GM_info && GM_info.script) info.script = { version: GM_info.script.version, name: GM_info.script.name, description: GM_info.script.description };
script.appendChild(document.createTextNode('('+ wrapper +')('+JSON.stringify(info)+');'));
(document.body || document.head || document.documentElement).appendChild(script);