IE 11 (and lower)

[piperh]

Thanks for developing and sharing micromodal. Very easy to configure.

The only setback for me, it doesn't appear to work with any version of Explorer, at least on my MAMP setup (is OK with Edge). Is there a way to make it function with IE?

[jmjoines]

@piperh - it's a browser compatibilty issue with Array.from()

see: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/from

You can add the following to the beginning of the script, which should fix it in IE

// Production steps of ECMA-262, Edition 6, 22.1.2.1
if (!Array.from) {
  Array.from = (function () {
    var toStr = Object.prototype.toString;
    var isCallable = function (fn) {
      return typeof fn === 'function' || toStr.call(fn) === '[object Function]';
    };
    var toInteger = function (value) {
      var number = Number(value);
      if (isNaN(number)) { return 0; }
      if (number === 0 || !isFinite(number)) { return number; }
      return (number > 0 ? 1 : -1) * Math.floor(Math.abs(number));
    };
    var maxSafeInteger = Math.pow(2, 53) - 1;
    var toLength = function (value) {
      var len = toInteger(value);
      return Math.min(Math.max(len, 0), maxSafeInteger);
    };

    // The length property of the from method is 1.
    return function from(arrayLike/*, mapFn, thisArg */) {
      // 1. Let C be the this value.
      var C = this;

      // 2. Let items be ToObject(arrayLike).
      var items = Object(arrayLike);

      // 3. ReturnIfAbrupt(items).
      if (arrayLike == null) {
        throw new TypeError('Array.from requires an array-like object - not null or undefined');
      }

      // 4. If mapfn is undefined, then let mapping be false.
      var mapFn = arguments.length > 1 ? arguments[1] : void undefined;
      var T;
      if (typeof mapFn !== 'undefined') {
        // 5. else
        // 5. a If IsCallable(mapfn) is false, throw a TypeError exception.
        if (!isCallable(mapFn)) {
          throw new TypeError('Array.from: when provided, the second argument must be a function');
        }

        // 5. b. If thisArg was supplied, let T be thisArg; else let T be undefined.
        if (arguments.length > 2) {
          T = arguments[2];
        }
      }

      // 10. Let lenValue be Get(items, "length").
      // 11. Let len be ToLength(lenValue).
      var len = toLength(items.length);

      // 13. If IsConstructor(C) is true, then
      // 13. a. Let A be the result of calling the [[Construct]] internal method 
      // of C with an argument list containing the single item len.
      // 14. a. Else, Let A be ArrayCreate(len).
      var A = isCallable(C) ? Object(new C(len)) : new Array(len);

      // 16. Let k be 0.
      var k = 0;
      // 17. Repeat, while k < len… (also steps a - h)
      var kValue;
      while (k < len) {
        kValue = items[k];
        if (mapFn) {
          A[k] = typeof T === 'undefined' ? mapFn(kValue, k) : mapFn.call(T, kValue, k);
        } else {
          A[k] = kValue;
        }
        k += 1;
      }
      // 18. Let putStatus be Put(A, "length", len, true).
      A.length = len;
      // 20. Return A.
      return A;
    };
  }());
}

[piperh]

Adding the above before the existing code in micromodal.min.js does change the behaviour in IE but only produces a minimal window containing the closer 'X'. The window does not size to fit the rest of the content. (I'm using IE11 in Windows 10 on a MAMP setup).

[Silisav]

Hello, has anyone discovered if there is a way to fully support ie11?

[zabusm]

replace $.extend with Object.assign in the script or use a Object.asign polyfill for ie

[qrac]

Hello, I could support IE 11 by writing code to solve Object.assign and Array.from () before "micro-modal".

/* IE Polyfull */

if (typeof Object.assign != "function") {
  Object.defineProperty(Object, "assign", {
    value: function assign(target, varArgs) {
      "use strict"
      if (target == null) {
        throw new TypeError("Cannot convert undefined or null to object")
      }
      var to = Object(target)
      for (var index = 1; index < arguments.length; index++) {
        var nextSource = arguments[index]
        if (nextSource != null) {
          for (var nextKey in nextSource) {
            if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) {
              to[nextKey] = nextSource[nextKey]
            }
          }
        }
      }
      return to
    },
    writable: true,
    configurable: true
  })
}

if (!Array.from) {
  Array.from = (function() {
    var toStr = Object.prototype.toString
    var isCallable = function(fn) {
      return typeof fn === "function" || toStr.call(fn) === "[object Function]"
    }
    var toInteger = function(value) {
      var number = Number(value)
      if (isNaN(number)) {
        return 0
      }
      if (number === 0 || !isFinite(number)) {
        return number
      }
      return (number > 0 ? 1 : -1) * Math.floor(Math.abs(number))
    }
    var maxSafeInteger = Math.pow(2, 53) - 1
    var toLength = function(value) {
      var len = toInteger(value)
      return Math.min(Math.max(len, 0), maxSafeInteger)
    }

    return function from(arrayLike) {
      var C = this
      var items = Object(arrayLike)
      if (arrayLike == null) {
        throw new TypeError(
          "Array.from requires an array-like object - not null or undefined"
        )
      }
      var mapFn = arguments.length > 1 ? arguments[1] : void undefined
      var T
      if (typeof mapFn !== "undefined") {
        if (!isCallable(mapFn)) {
          throw new TypeError(
            "Array.from: when provided, the second argument must be a function"
          )
        }
        if (arguments.length > 2) {
          T = arguments[2]
        }
      }
      var len = toLength(items.length)
      var A = isCallable(C) ? Object(new C(len)) : new Array(len)
      var k = 0
      var kValue
      while (k < len) {
        kValue = items[k]
        if (mapFn) {
          A[k] =
            typeof T === "undefined"
              ? mapFn(kValue, k)
              : mapFn.call(T, kValue, k)
        } else {
          A[k] = kValue
        }
        k += 1
      }
      A.length = len
      return A
    }
  })()
}

[Larzans]

@qrac awesome, thanks, that worked like a charm!

[nicklee]

Thanks for the above fix!

Worth mentioning that you could also include baby-polyfill ( https://babeljs.io/docs/en/babel-polyfill ) or es6-object-assign ( https://www.npmjs.com/package/es6-object-assign ) to get this working in IE11!

[sectsect]

Solutions

version: 0.4.0

1. Transpile the module with Babel by modifying the exclude property in your webpack config.

- exclude: /node_modules/,
+ exclude: /node_modules\/(?!(micromodal)\/).*/,

2. Or, Add a partial polyfill modules in core-js manually.

import 'core-js/modules/es.object.assign';
import 'core-js/modules/es.array.from';
import MicroModal from 'micromodal';

[ghosh]

Thanks for the pollyfill @qrac. Closing this issue and pointing to your answer as an official recommendation.

[KevinWagnerWave]

This site overrides Array.from() with an implementation that doesn't support iterables, which could cause Google Maps JavaScript API v3 to not work correctly.

[KevinWagnerWave]

Using qrac's polyfill.

[HansCz]

+1 for @qrac solution

[alekslinde]

To expand a little bit more on the @sectsect Webpack solution, here is what I ended up with:

module.exports = {
    output: {
        filename: 'main.min.js'
    },
    module: {
        rules: [
          {
            test: /\.m?js$/,
            exclude: /(node_modules|bower_components)\/(?!(micromodal)\/).*/,
            use: {
              loader: 'babel-loader',
              options: {
                presets: [
                  ['@babel/preset-env', {
                    useBuiltIns: "usage",
                    targets: {
                      browsers: "> 2%, ie 11, safari > 9"
                    },
                    corejs: 3
                  }],
                ],
                plugins: ['@babel/plugin-proposal-object-rest-spread']
              }
            }
          }
        ]
      }
};

For this to work you need to have the following dependencies installed:
npm i --save-dev @babel/core @babel/preset-env babel babel-loader core-js