diff --git a/lib/bodyScrollLock.es6.js b/lib/bodyScrollLock.es6.js
index fa4f42b9..074c70fd 100644
--- a/lib/bodyScrollLock.es6.js
+++ b/lib/bodyScrollLock.es6.js
@@ -13,11 +13,12 @@ if (typeof window !== 'undefined') {
       return undefined;
     }
   };
-  window.addEventListener('testPassive', null, passiveTestOptions);
-  window.removeEventListener('testPassive', null, passiveTestOptions);
+  /* @__PURE__ */window.addEventListener('testPassive', null, passiveTestOptions);
+  /* @__PURE__ */window.removeEventListener('testPassive', null, passiveTestOptions);
 }
 
-const isIosDevice = typeof window !== 'undefined' && window.navigator && window.navigator.platform && (/iP(ad|hone|od)/.test(window.navigator.platform) || window.navigator.platform === 'MacIntel' && window.navigator.maxTouchPoints > 1);
+const isIosDevice = typeof window !== 'undefined' && window.navigator && window.navigator.platform && (
+/* @__PURE__ *//iP(ad|hone|od)/.test(window.navigator.platform) || window.navigator.platform === 'MacIntel' && window.navigator.maxTouchPoints > 1);
 
 
 let locks = [];
diff --git a/lib/bodyScrollLock.esm.js b/lib/bodyScrollLock.esm.js
index 23518372..c58efde3 100644
--- a/lib/bodyScrollLock.esm.js
+++ b/lib/bodyScrollLock.esm.js
@@ -13,11 +13,12 @@ if (typeof window !== 'undefined') {
       return undefined;
     }
   };
-  window.addEventListener('testPassive', null, passiveTestOptions);
-  window.removeEventListener('testPassive', null, passiveTestOptions);
+  /* @__PURE__ */window.addEventListener('testPassive', null, passiveTestOptions);
+  /* @__PURE__ */window.removeEventListener('testPassive', null, passiveTestOptions);
 }
 
-var isIosDevice = typeof window !== 'undefined' && window.navigator && window.navigator.platform && (/iP(ad|hone|od)/.test(window.navigator.platform) || window.navigator.platform === 'MacIntel' && window.navigator.maxTouchPoints > 1);
+var isIosDevice = typeof window !== 'undefined' && window.navigator && window.navigator.platform && (
+/* @__PURE__ *//iP(ad|hone|od)/.test(window.navigator.platform) || window.navigator.platform === 'MacIntel' && window.navigator.maxTouchPoints > 1);
 
 
 var locks = [];
diff --git a/lib/bodyScrollLock.js b/lib/bodyScrollLock.js
index a8dfa1f1..22dcbca2 100644
--- a/lib/bodyScrollLock.js
+++ b/lib/bodyScrollLock.js
@@ -42,11 +42,12 @@
         return undefined;
       }
     };
-    window.addEventListener('testPassive', null, passiveTestOptions);
-    window.removeEventListener('testPassive', null, passiveTestOptions);
+    /* @__PURE__ */window.addEventListener('testPassive', null, passiveTestOptions);
+    /* @__PURE__ */window.removeEventListener('testPassive', null, passiveTestOptions);
   }
 
-  var isIosDevice = typeof window !== 'undefined' && window.navigator && window.navigator.platform && (/iP(ad|hone|od)/.test(window.navigator.platform) || window.navigator.platform === 'MacIntel' && window.navigator.maxTouchPoints > 1);
+  var isIosDevice = typeof window !== 'undefined' && window.navigator && window.navigator.platform && (
+  /* @__PURE__ *//iP(ad|hone|od)/.test(window.navigator.platform) || window.navigator.platform === 'MacIntel' && window.navigator.maxTouchPoints > 1);
 
 
   var locks = [];
diff --git a/lib/bodyScrollLock.min.js b/lib/bodyScrollLock.min.js
index c2f200f5..e73c2317 100644
--- a/lib/bodyScrollLock.min.js
+++ b/lib/bodyScrollLock.min.js
@@ -1 +1 @@
-!function(e,o){if("function"==typeof define&&define.amd)define(["exports"],o);else if("undefined"!=typeof exports)o(exports);else{var t={};o(t),e.bodyScrollLock=t}}(this,function(exports){"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var t=!1;if("undefined"!=typeof window){var e={get passive(){t=!0}};window.addEventListener("testPassive",null,e),window.removeEventListener("testPassive",null,e)}function d(o){return s.some(function(e){return!(!e.options.allowTouchMove||!e.options.allowTouchMove(o))})}function l(e){var o=e||window.event;return!!d(o.target)||(1<o.touches.length||(o.preventDefault&&o.preventDefault(),!1))}function n(){void 0!==m&&(document.body.style.paddingRight=m,m=void 0),void 0!==v&&(document.body.style.overflow=v,v=void 0)}function i(){if(void 0!==f){var e=-parseInt(document.body.style.top,10),o=-parseInt(document.body.style.left,10);document.body.style.position=f.position,document.body.style.top=f.top,document.body.style.left=f.left,window.scrollTo(o,e),f=void 0}}var c="undefined"!=typeof window&&window.navigator&&window.navigator.platform&&(/iP(ad|hone|od)/.test(window.navigator.platform)||"MacIntel"===window.navigator.platform&&1<window.navigator.maxTouchPoints),s=[],u=!1,a=-1,v=void 0,f=void 0,m=void 0;exports.disableBodyScroll=function(r,e){if(r){if(!s.some(function(e){return e.targetElement===r})){var o={targetElement:r,options:e||{}};s=[].concat(function(e){if(Array.isArray(e)){for(var o=0,t=Array(e.length);o<e.length;o++)t[o]=e[o];return t}return Array.from(e)}(s),[o]),c?window.requestAnimationFrame(function(){if(void 0===f){f={position:document.body.style.position,top:document.body.style.top,left:document.body.style.left};var e=window,o=e.scrollY,t=e.scrollX,n=e.innerHeight;document.body.style.position="fixed",document.body.style.top=-o+"px",document.body.style.left=-t+"px",setTimeout(function(){return window.requestAnimationFrame(function(){var e=n-window.innerHeight;e&&n<=o&&(document.body.style.top=-(o+e))})},300)}}):function(e){if(void 0===m){var o=!!e&&!0===e.reserveScrollBarGap,t=window.innerWidth-document.documentElement.clientWidth;if(o&&0<t){var n=parseInt(window.getComputedStyle(document.body).getPropertyValue("padding-right"),10);m=document.body.style.paddingRight,document.body.style.paddingRight=n+t+"px"}}void 0===v&&(v=document.body.style.overflow,document.body.style.overflow="hidden")}(e),c&&(r.ontouchstart=function(e){1===e.targetTouches.length&&(a=e.targetTouches[0].clientY)},r.ontouchmove=function(e){var o,t,n,i;1===e.targetTouches.length&&(t=r,i=(o=e).targetTouches[0].clientY-a,d(o.target)||(t&&0===t.scrollTop&&0<i||(n=t)&&n.scrollHeight-n.scrollTop<=n.clientHeight&&i<0?l(o):o.stopPropagation()))},u||(document.addEventListener("touchmove",l,t?{passive:!1}:void 0),u=!0))}}else console.error("disableBodyScroll unsuccessful - targetElement must be provided when calling disableBodyScroll on IOS devices.")},exports.clearAllBodyScrollLocks=function(){c&&(s.forEach(function(e){e.targetElement.ontouchstart=null,e.targetElement.ontouchmove=null}),u&&(document.removeEventListener("touchmove",l,t?{passive:!1}:void 0),u=!1),a=-1),(c?i:n)(),s=[]},exports.enableBodyScroll=function(o){o?(s=s.filter(function(e){return e.targetElement!==o}),c&&(o.ontouchstart=null,o.ontouchmove=null,u&&0===s.length&&(document.removeEventListener("touchmove",l,t?{passive:!1}:void 0),u=!1)),(c?i:n)()):console.error("enableBodyScroll unsuccessful - targetElement must be provided when calling enableBodyScroll on IOS devices.")}});
+!function(o,e){if("function"==typeof define&&define.amd)define(["exports"],e);else if("undefined"!=typeof exports)e(exports);else{var t={};e(t),o.bodyScrollLock=t}}(this,function(exports){"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var t=!1;if("undefined"!=typeof window);function d(e){return c.some(function(o){return!(!o.options.allowTouchMove||!o.options.allowTouchMove(e))})}function l(o){var e=o||window.event;return!!d(e.target)||(1<e.touches.length||(e.preventDefault&&e.preventDefault(),!1))}function o(){void 0!==v&&(document.body.style.paddingRight=v,v=void 0),void 0!==a&&(document.body.style.overflow=a,a=void 0)}function n(){if(void 0!==f){var o=-parseInt(document.body.style.top,10),e=-parseInt(document.body.style.left,10);document.body.style.position=f.position,document.body.style.top=f.top,document.body.style.left=f.left,window.scrollTo(e,o),f=void 0}}var i="undefined"!=typeof window&&window.navigator&&window.navigator.platform&&(/iP(ad|hone|od)/.test(window.navigator.platform)||"MacIntel"===window.navigator.platform&&1<window.navigator.maxTouchPoints),c=[],u=!1,s=-1,a=void 0,f=void 0,v=void 0;exports.disableBodyScroll=function(r,o){if(r){if(!c.some(function(o){return o.targetElement===r})){var e={targetElement:r,options:o||{}};c=[].concat(function(o){if(Array.isArray(o)){for(var e=0,t=Array(o.length);e<o.length;e++)t[e]=o[e];return t}return Array.from(o)}(c),[e]),i?window.requestAnimationFrame(function(){if(void 0===f){f={position:document.body.style.position,top:document.body.style.top,left:document.body.style.left};var o=window,e=o.scrollY,t=o.scrollX,n=o.innerHeight;document.body.style.position="fixed",document.body.style.top=-e+"px",document.body.style.left=-t+"px",setTimeout(function(){return window.requestAnimationFrame(function(){var o=n-window.innerHeight;o&&n<=e&&(document.body.style.top=-(e+o))})},300)}}):function(o){if(void 0===v){var e=!!o&&!0===o.reserveScrollBarGap,t=window.innerWidth-document.documentElement.clientWidth;if(e&&0<t){var n=parseInt(window.getComputedStyle(document.body).getPropertyValue("padding-right"),10);v=document.body.style.paddingRight,document.body.style.paddingRight=n+t+"px"}}void 0===a&&(a=document.body.style.overflow,document.body.style.overflow="hidden")}(o),i&&(r.ontouchstart=function(o){1===o.targetTouches.length&&(s=o.targetTouches[0].clientY)},r.ontouchmove=function(o){var e,t,n,i;1===o.targetTouches.length&&(t=r,i=(e=o).targetTouches[0].clientY-s,d(e.target)||(t&&0===t.scrollTop&&0<i||(n=t)&&n.scrollHeight-n.scrollTop<=n.clientHeight&&i<0?l(e):e.stopPropagation()))},u||(document.addEventListener("touchmove",l,t?{passive:!1}:void 0),u=!0))}}else console.error("disableBodyScroll unsuccessful - targetElement must be provided when calling disableBodyScroll on IOS devices.")},exports.clearAllBodyScrollLocks=function(){i&&(c.forEach(function(o){o.targetElement.ontouchstart=null,o.targetElement.ontouchmove=null}),u&&(document.removeEventListener("touchmove",l,t?{passive:!1}:void 0),u=!1),s=-1),(i?n:o)(),c=[]},exports.enableBodyScroll=function(e){e?(c=c.filter(function(o){return o.targetElement!==e}),i&&(e.ontouchstart=null,e.ontouchmove=null,u&&0===c.length&&(document.removeEventListener("touchmove",l,t?{passive:!1}:void 0),u=!1)),(i?n:o)()):console.error("enableBodyScroll unsuccessful - targetElement must be provided when calling enableBodyScroll on IOS devices.")}});
diff --git a/src/bodyScrollLock.js b/src/bodyScrollLock.js
index cb4b1459..0d40d68e 100644
--- a/src/bodyScrollLock.js
+++ b/src/bodyScrollLock.js
@@ -21,15 +21,18 @@ if (typeof window !== 'undefined') {
       return undefined;
     },
   };
-  window.addEventListener('testPassive', null, passiveTestOptions);
-  window.removeEventListener('testPassive', null, passiveTestOptions);
+  // PURE marks for bundlers so they can tree-shake this code
+  // if `hasPassiveEvents` is not used
+  /* @__PURE__ */ window.addEventListener('testPassive', null, passiveTestOptions);
+  /* @__PURE__ */ window.removeEventListener('testPassive', null, passiveTestOptions);
 }
 
 const isIosDevice =
   typeof window !== 'undefined' &&
   window.navigator &&
   window.navigator.platform &&
-  (/iP(ad|hone|od)/.test(window.navigator.platform) ||
+  // PURE mark for tree-shakeability
+  /* @__PURE__ */ (/iP(ad|hone|od)/.test(window.navigator.platform) ||
     (window.navigator.platform === 'MacIntel' && window.navigator.maxTouchPoints > 1));
 type HandleScrollEvent = TouchEvent;