diff --git a/dist/imgix.js b/dist/imgix.js
index fefcead8..b28f5aa2 100644
--- a/dist/imgix.js
+++ b/dist/imgix.js
@@ -540,12 +540,6 @@ var ImgixTag = (function () {
     var clonedParams = util.shallowClone(this.baseParams);
     clonedParams.w = targetWidth;
 
-    if (this.baseParams.w != null && this.baseParams.h != null) {
-      clonedParams.h = Math.round(
-        targetWidth * (this.baseParams.h / this.baseParams.w)
-      );
-    }
-
     var url = this.baseUrlWithoutQuery + '?',
       val,
       params = [];
@@ -807,7 +801,7 @@ var ImgixTag = require('./ImgixTag.js'),
   util = require('./util.js'),
   defaultConfig = require('./defaultConfig');
 
-var VERSION = '3.6.0';
+var VERSION = '3.6.1';
 
 global.imgix = {
   init: function (opts) {
diff --git a/dist/imgix.min.js b/dist/imgix.min.js
index 2ec4972a..76ee3550 100644
--- a/dist/imgix.min.js
+++ b/dist/imgix.min.js
@@ -1 +1 @@
-(function(){function f(r,a,o){function u(i,t){if(!a[i]){if(!r[i]){var e="function"==typeof require&&require;if(!t&&e)return e(i,!0);if(l)return l(i,!0);var n=new Error("Cannot find module '"+i+"'");throw n.code="MODULE_NOT_FOUND",n}var s=a[i]={exports:{}};r[i][0].call(s.exports,function(t){var e=r[i][1][t];return u(e||t)},s,s.exports,f,r,a,o)}return a[i].exports}for(var l="function"==typeof require&&require,t=0;t<o.length;t++)u(o[t]);return u}return f})()({1:[function(t,b,e){(function(g){(function(){var A="Expected a function";var n=0/0;var e="[object Symbol]";var s=/^\s+|\s+$/g;var r=/^[-+]0x[0-9a-f]+$/i;var a=/^0b[01]+$/i;var o=/^0o[0-7]+$/i;var u=parseInt;var t=typeof g=="object"&&g&&g.Object===Object&&g;var i=typeof self=="object"&&self&&self.Object===Object&&self;var l=t||i||Function("return this")();var f=Object.prototype;var c=f.toString;var S=Math.max,z=Math.min;var j=function(){return l.Date.now()};function h(n,s,t){var r,a,o,u,i,l,f=0,e=false,c=false,h=true;if(typeof n!="function"){throw new TypeError(A)}s=P(s)||0;if(I(t)){e=!!t.leading;c="maxWait"in t;o=c?S(P(t.maxWait)||0,s):o;h="trailing"in t?!!t.trailing:h}function d(t){var e=r,i=a;r=a=undefined;f=t;u=n.apply(i,e);return u}function p(t){f=t;i=setTimeout(m,s);return e?d(t):u}function g(t){var e=t-l,i=t-f,n=s-e;return c?z(n,o-i):n}function b(t){var e=t-l,i=t-f;return l===undefined||e>=s||e<0||c&&i>=o}function m(){var t=j();if(b(t)){return x(t)}i=setTimeout(m,g(t))}function x(t){i=undefined;if(h&&r){return d(t)}r=a=undefined;return u}function v(){if(i!==undefined){clearTimeout(i)}f=0;r=l=a=i=undefined}function w(){return i===undefined?u:x(j())}function y(){var t=j(),e=b(t);r=arguments;a=this;l=t;if(e){if(i===undefined){return p(l)}if(c){i=setTimeout(m,s);return d(l)}}if(i===undefined){i=setTimeout(m,s)}return u}y.cancel=v;y.flush=w;return y}function I(t){var e=typeof t;return!!t&&(e=="object"||e=="function")}function d(t){return!!t&&typeof t=="object"}function p(t){return typeof t=="symbol"||d(t)&&c.call(t)==e}function P(t){if(typeof t=="number"){return t}if(p(t)){return n}if(I(t)){var e=typeof t.valueOf=="function"?t.valueOf():t;t=I(e)?e+"":e}if(typeof t!="string"){return t===0?t:+t}t=t.replace(s,"");var i=a.test(t);return i||o.test(t)?u(t.slice(2),i?2:8):r.test(t)?n:+t}b.exports=h}).call(this)}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}],2:[function(t,e,i){var o=t("./util.js"),n=t("./targetWidths.js"),s=t("./autoSize");var r=function(){function t(t,e){this.el=t;this.settings=e||{};if(!this.el){console.warn("ImgixTag must be passed a DOM element.");return}this.window=this.settings.window?this.settings.window:null;if(this.el.hasAttribute("ix-initialized")&&!this.settings.force){return}this.ixPathVal=t.getAttribute(this.settings.pathInputAttribute);this.ixParamsVal=t.getAttribute(this.settings.paramsInputAttribute);this.ixSrcVal=t.getAttribute(this.settings.srcInputAttribute);this.ixHostVal=t.getAttribute(this.settings.hostInputAttribute)||this.settings.host;if(this.ixPathVal&&!this.ixHostVal){console.warn("You must set a value for `imgix.config.host` or specify an `ix-host` attribute to use `ix-path` and `ix-params`.");return}if(typeof this.ixPathVal==="string"&&this.ixPathVal.length==0){console.warn('`ix-path` cannot accept a value of empty string ""');return}if(typeof this.ixSrcVal==="string"&&this.ixSrcVal.length==0){console.warn('`ix-src` cannot accept a value of empty string ""');return}this.baseParams=this._extractBaseParams();this.baseUrl=this._buildBaseUrl();this.baseUrlWithoutQuery=this.baseUrl.split("?")[0];if(o.isString(this.el.className)){if(this.el.className.includes("nolazyload")){this.settings.sizesAttribute="sizes";this.settings.srcsetAttribute="srcset";this.settings.srcAttribute="src"}}if(o.isString(this.settings.sizesAttribute)){this.el.setAttribute(this.settings.sizesAttribute,this.sizes())}if(o.isString(this.settings.srcsetAttribute)){this.el.setAttribute(this.settings.srcsetAttribute,this.srcset())}if(o.isString(this.settings.srcAttribute)&&this.el.nodeName=="IMG"){this.el.setAttribute(this.settings.srcAttribute,this.src())}this.el.setAttribute("ix-initialized","ix-initialized")}t.prototype._extractBaseParams=function(){var t={};if(this.settings.defaultParams&&typeof this.settings.defaultParams==="object"&&this.settings.defaultParams!==null){t=Object.assign({},this.settings.defaultParams)}if(this.ixPathVal){t=Object.assign({},t,JSON.parse(this.ixParamsVal)||{});for(var e in t){if(e.substr(-2)==="64"){t[e]=o.encode64(t[e])}}}else{var i=this.ixSrcVal.lastIndexOf("?");if(i>-1){var n=this.ixSrcVal.substr(i+1),s=n.split("&");for(var r=0,a;r<s.length;r++){a=s[r].split("=");t[a[0]]=a[1]}}}if(this.settings.includeLibraryParam){t.ixlib="imgixjs-"+imgix.VERSION}return t};t.prototype._buildBaseUrl=function(){if(this.ixSrcVal){return this.ixSrcVal}var t=this.ixPathVal,e=this.settings.useHttps?"https":"http",i=e+"://"+this.ixHostVal,n=this.ixHostVal.substr(-1)==="/",s=t[0]==="/";if(n&&s){i+=t.substr(1)}else if(!n&&!s){i+="/"+t}else{i+=t}i+="?";var r=[],a;for(var o in this.baseParams){a=this.baseParams[o];if(a==null){continue}r.push(encodeURIComponent(o)+"="+encodeURIComponent(a))}i+=r.join("&");return i};t.prototype._buildSrcsetPair=function(t){var e=o.shallowClone(this.baseParams);e.w=t;if(this.baseParams.w!=null&&this.baseParams.h!=null){e.h=Math.round(t*(this.baseParams.h/this.baseParams.w))}var i=this.baseUrlWithoutQuery+"?",n,s=[];for(var r in e){n=e[r];s.push(r+"="+n)}i+=s.join("&");return i+" "+t+"w"};t.prototype.src=function(){return this.baseUrl};t.prototype.srcset=function(){var t=[];for(var e=0;e<n.length;e++){t.push(this._buildSrcsetPair(n[e]))}return t.join(", ")};t.prototype.sizes=function(){var t=this.el.getAttribute("sizes");var e=this.el.getAttribute("ix-sizes");const i=this.el;const n=this.window;if(t==null&&e!=="auto"){return e?e:"100vw"}else if(t==null&&e==="auto"){return s.updateOnResize({el:i,existingSizes:t,ixSizes:e,_window:n})}else{return t?t:"100vw"}};return t}();e.exports=r},{"./autoSize":3,"./targetWidths.js":6,"./util.js":7}],3:[function(t,e,i){const o=t("./util");const s=40;const u=200;const l=function({parent:i,width:n}){if(n<s){n=s;let t=i.offsetWidth;let e=i.parentNode;while(e&&t<n){t=e.offsetWidth;e=e.parentNode}if(t>n){n=t}}return n};const r=({el:t})=>{if(!t.complete){console.warn("Imgix.js: attempted to set sizes attribute on element with complete evaluating to false");return false}if(t.naturalWidth===0){console.warn("Imgix.js: attempted to set sizes attribute on element with no naturalWidth");return false}return true};const a=({el:t,existingSizes:e,ixSizes:i,elHasAttributes:n})=>{if(!e&&!i){console.warn("Imgix.js: attempted to set sizes attribute on element without existing sizes attribute value");return false}if(!n){console.warn("Imgix.js: attempted to set sizes attribute on element with no attributes");return false}return r({el:t})};const f=({el:t,existingSizes:e,ixSizes:i,elHasAttributes:n,_window:s})=>{let r=a({el:t,existingSizes:e,ixSizes:i,elHasAttributes:n,_window:s})?l({el:t,parent:t.parentNode,width:t.offsetWidth})+"px":e;return r};const c=({el:t,existingSizes:e,ixSizes:i,_window:n,elHasAttributes:s})=>{const r=f({el:t,existingSizes:e,ixSizes:i,elHasAttributes:s,_window:n});if(r!==e){n.requestAnimationFrame(()=>{t.setAttribute("sizes",r)})}};const n=({el:t,existingSizes:e,ixSizes:i,_window:n})=>{const s=t.hasAttributes();const r=o.rICShim(n);const a=o.debounce(()=>{r(()=>c({el:t,existingSizes:e,ixSizes:i,_window:n,elHasAttributes:s}))},u);n.addEventListener("resize",a,false);return l({el:t,parent:t.parentNode,width:t.offsetWidth})+"px"};const h={getElementWidth:l,imgCanBeSized:a,updateOnResize:n};e.exports=h},{"./util":7}],4:[function(t,e,i){e.exports={host:null,useHttps:true,includeLibraryParam:true,defaultParams:{},srcAttribute:"src",srcsetAttribute:"srcset",sizesAttribute:"sizes",srcInputAttribute:"ix-src",pathInputAttribute:"ix-path",paramsInputAttribute:"ix-params",hostInputAttribute:"ix-host",window:typeof window!=="undefined"?window:null}},{}],5:[function(e,t,i){(function(r){(function(){var a=e("./ImgixTag.js"),o=e("./util.js"),s=e("./defaultConfig");var t="3.6.0";r.imgix={init:function(t){var e=o.shallowClone(this.config);o.extend(e,t||{});var i=["img["+e.srcInputAttribute+"]","source["+e.srcInputAttribute+"]","img["+e.pathInputAttribute+"]","source["+e.pathInputAttribute+"]"].join(",");var n=document.querySelectorAll(i);for(var s=0,r;s<n.length;s++){new a(n[s],e)}},config:s,VERSION:t};o.domReady(function(){o.objectEach(s,function(t,e){var i=o.getMetaTagValue(e);if(typeof i!=="undefined"){var n=typeof s[e];if(n==="boolean"){r.imgix.config[e]=!!i}else if(n==="object"&&s[e]!=null){r.imgix.config[e]=JSON.parse(i)||{}}else{r.imgix.config[e]=i}}});if(o.getMetaTagValue("autoInit")!==false){r.imgix.init()}})}).call(this)}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"./ImgixTag.js":2,"./defaultConfig":4,"./util.js":7}],6:[function(t,e,i){function n(){var t=[];var e=100;var i=8;var n=8192;function s(t){return 2*Math.round(t/2)}while(e<=n){t.push(s(e));e*=1+i/100*2}return t}e.exports=n()},{}],7:[function(t,e,i){const n=t("lodash.debounce");e.exports={compact:function(t){var e=[];for(var i=0;i<t.length;i++){t[i]&&e.push(t[i])}return e},shallowClone:function(t){var e={};for(var i in t){e[i]=t[i]}return e},extend:function(t,e){for(var i in e){t[i]=e[i]}return t},uniq:function(t){var e={},i=[],n;for(n=0;n<t.length;n++){if(!e[t[n]]){e[t[n]]=true;i.push(t[n])}}return i},objectEach:function(t,e){for(var i in t){if(t.hasOwnProperty(i)){e(t[i],i)}}},isString:function(t){return typeof t==="string"},encode64:function(t){var e=unescape(encodeURIComponent(t)),i=btoa(e),n=i.replace(/\+/g,"-");n=n.replace(/\//g,"_").replace(/\//g,"_").replace(/\=+$/,"");return n},decode64:function(t){var e=t.replace(/-/g,"+").replace(/_/g,"/"),i=atob(e),n=decodeURIComponent(escape(i));return n},domReady:function(t){if(document.readyState==="complete"){setTimeout(t,0)}else if(document.addEventListener){document.addEventListener("DOMContentLoaded",t,false)}else{document.attachEvent("onreadystatechange",function(){if(document.readyState==="complete"){t()}})}},getMetaTagValue:function(t){var e=document.querySelector('meta[property="ix:'+t+'"]'),i;if(!e){return}i=e.getAttribute("content");if(i==="true"){return true}else if(i==="false"){return false}else if(i===""||i==="null"){return null}else{return i}},debounce:n,rICShim:function(t){return t.requestIdleCallback||function(t){var e=Date.now();return setTimeout(function(){t({didTimeout:false,timeRemaining:function(){return Math.max(0,50-(Date.now()-e))}})},1)}}}},{"lodash.debounce":1}]},{},[5]);
+(function(){function f(r,a,o){function u(i,t){if(!a[i]){if(!r[i]){var e="function"==typeof require&&require;if(!t&&e)return e(i,!0);if(l)return l(i,!0);var n=new Error("Cannot find module '"+i+"'");throw n.code="MODULE_NOT_FOUND",n}var s=a[i]={exports:{}};r[i][0].call(s.exports,function(t){var e=r[i][1][t];return u(e||t)},s,s.exports,f,r,a,o)}return a[i].exports}for(var l="function"==typeof require&&require,t=0;t<o.length;t++)u(o[t]);return u}return f})()({1:[function(t,b,e){(function(g){(function(){var A="Expected a function";var n=0/0;var e="[object Symbol]";var s=/^\s+|\s+$/g;var r=/^[-+]0x[0-9a-f]+$/i;var a=/^0b[01]+$/i;var o=/^0o[0-7]+$/i;var u=parseInt;var t=typeof g=="object"&&g&&g.Object===Object&&g;var i=typeof self=="object"&&self&&self.Object===Object&&self;var l=t||i||Function("return this")();var f=Object.prototype;var c=f.toString;var S=Math.max,z=Math.min;var j=function(){return l.Date.now()};function h(n,s,t){var r,a,o,u,i,l,f=0,e=false,c=false,h=true;if(typeof n!="function"){throw new TypeError(A)}s=P(s)||0;if(I(t)){e=!!t.leading;c="maxWait"in t;o=c?S(P(t.maxWait)||0,s):o;h="trailing"in t?!!t.trailing:h}function d(t){var e=r,i=a;r=a=undefined;f=t;u=n.apply(i,e);return u}function p(t){f=t;i=setTimeout(m,s);return e?d(t):u}function g(t){var e=t-l,i=t-f,n=s-e;return c?z(n,o-i):n}function b(t){var e=t-l,i=t-f;return l===undefined||e>=s||e<0||c&&i>=o}function m(){var t=j();if(b(t)){return x(t)}i=setTimeout(m,g(t))}function x(t){i=undefined;if(h&&r){return d(t)}r=a=undefined;return u}function v(){if(i!==undefined){clearTimeout(i)}f=0;r=l=a=i=undefined}function w(){return i===undefined?u:x(j())}function y(){var t=j(),e=b(t);r=arguments;a=this;l=t;if(e){if(i===undefined){return p(l)}if(c){i=setTimeout(m,s);return d(l)}}if(i===undefined){i=setTimeout(m,s)}return u}y.cancel=v;y.flush=w;return y}function I(t){var e=typeof t;return!!t&&(e=="object"||e=="function")}function d(t){return!!t&&typeof t=="object"}function p(t){return typeof t=="symbol"||d(t)&&c.call(t)==e}function P(t){if(typeof t=="number"){return t}if(p(t)){return n}if(I(t)){var e=typeof t.valueOf=="function"?t.valueOf():t;t=I(e)?e+"":e}if(typeof t!="string"){return t===0?t:+t}t=t.replace(s,"");var i=a.test(t);return i||o.test(t)?u(t.slice(2),i?2:8):r.test(t)?n:+t}b.exports=h}).call(this)}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}],2:[function(t,e,i){var o=t("./util.js"),n=t("./targetWidths.js"),s=t("./autoSize");var r=function(){function t(t,e){this.el=t;this.settings=e||{};if(!this.el){console.warn("ImgixTag must be passed a DOM element.");return}this.window=this.settings.window?this.settings.window:null;if(this.el.hasAttribute("ix-initialized")&&!this.settings.force){return}this.ixPathVal=t.getAttribute(this.settings.pathInputAttribute);this.ixParamsVal=t.getAttribute(this.settings.paramsInputAttribute);this.ixSrcVal=t.getAttribute(this.settings.srcInputAttribute);this.ixHostVal=t.getAttribute(this.settings.hostInputAttribute)||this.settings.host;if(this.ixPathVal&&!this.ixHostVal){console.warn("You must set a value for `imgix.config.host` or specify an `ix-host` attribute to use `ix-path` and `ix-params`.");return}if(typeof this.ixPathVal==="string"&&this.ixPathVal.length==0){console.warn('`ix-path` cannot accept a value of empty string ""');return}if(typeof this.ixSrcVal==="string"&&this.ixSrcVal.length==0){console.warn('`ix-src` cannot accept a value of empty string ""');return}this.baseParams=this._extractBaseParams();this.baseUrl=this._buildBaseUrl();this.baseUrlWithoutQuery=this.baseUrl.split("?")[0];if(o.isString(this.el.className)){if(this.el.className.includes("nolazyload")){this.settings.sizesAttribute="sizes";this.settings.srcsetAttribute="srcset";this.settings.srcAttribute="src"}}if(o.isString(this.settings.sizesAttribute)){this.el.setAttribute(this.settings.sizesAttribute,this.sizes())}if(o.isString(this.settings.srcsetAttribute)){this.el.setAttribute(this.settings.srcsetAttribute,this.srcset())}if(o.isString(this.settings.srcAttribute)&&this.el.nodeName=="IMG"){this.el.setAttribute(this.settings.srcAttribute,this.src())}this.el.setAttribute("ix-initialized","ix-initialized")}t.prototype._extractBaseParams=function(){var t={};if(this.settings.defaultParams&&typeof this.settings.defaultParams==="object"&&this.settings.defaultParams!==null){t=Object.assign({},this.settings.defaultParams)}if(this.ixPathVal){t=Object.assign({},t,JSON.parse(this.ixParamsVal)||{});for(var e in t){if(e.substr(-2)==="64"){t[e]=o.encode64(t[e])}}}else{var i=this.ixSrcVal.lastIndexOf("?");if(i>-1){var n=this.ixSrcVal.substr(i+1),s=n.split("&");for(var r=0,a;r<s.length;r++){a=s[r].split("=");t[a[0]]=a[1]}}}if(this.settings.includeLibraryParam){t.ixlib="imgixjs-"+imgix.VERSION}return t};t.prototype._buildBaseUrl=function(){if(this.ixSrcVal){return this.ixSrcVal}var t=this.ixPathVal,e=this.settings.useHttps?"https":"http",i=e+"://"+this.ixHostVal,n=this.ixHostVal.substr(-1)==="/",s=t[0]==="/";if(n&&s){i+=t.substr(1)}else if(!n&&!s){i+="/"+t}else{i+=t}i+="?";var r=[],a;for(var o in this.baseParams){a=this.baseParams[o];if(a==null){continue}r.push(encodeURIComponent(o)+"="+encodeURIComponent(a))}i+=r.join("&");return i};t.prototype._buildSrcsetPair=function(t){var e=o.shallowClone(this.baseParams);e.w=t;var i=this.baseUrlWithoutQuery+"?",n,s=[];for(var r in e){n=e[r];s.push(r+"="+n)}i+=s.join("&");return i+" "+t+"w"};t.prototype.src=function(){return this.baseUrl};t.prototype.srcset=function(){var t=[];for(var e=0;e<n.length;e++){t.push(this._buildSrcsetPair(n[e]))}return t.join(", ")};t.prototype.sizes=function(){var t=this.el.getAttribute("sizes");var e=this.el.getAttribute("ix-sizes");const i=this.el;const n=this.window;if(t==null&&e!=="auto"){return e?e:"100vw"}else if(t==null&&e==="auto"){return s.updateOnResize({el:i,existingSizes:t,ixSizes:e,_window:n})}else{return t?t:"100vw"}};return t}();e.exports=r},{"./autoSize":3,"./targetWidths.js":6,"./util.js":7}],3:[function(t,e,i){const o=t("./util");const s=40;const u=200;const l=function({parent:i,width:n}){if(n<s){n=s;let t=i.offsetWidth;let e=i.parentNode;while(e&&t<n){t=e.offsetWidth;e=e.parentNode}if(t>n){n=t}}return n};const r=({el:t})=>{if(!t.complete){console.warn("Imgix.js: attempted to set sizes attribute on element with complete evaluating to false");return false}if(t.naturalWidth===0){console.warn("Imgix.js: attempted to set sizes attribute on element with no naturalWidth");return false}return true};const a=({el:t,existingSizes:e,ixSizes:i,elHasAttributes:n})=>{if(!e&&!i){console.warn("Imgix.js: attempted to set sizes attribute on element without existing sizes attribute value");return false}if(!n){console.warn("Imgix.js: attempted to set sizes attribute on element with no attributes");return false}return r({el:t})};const f=({el:t,existingSizes:e,ixSizes:i,elHasAttributes:n,_window:s})=>{let r=a({el:t,existingSizes:e,ixSizes:i,elHasAttributes:n,_window:s})?l({el:t,parent:t.parentNode,width:t.offsetWidth})+"px":e;return r};const c=({el:t,existingSizes:e,ixSizes:i,_window:n,elHasAttributes:s})=>{const r=f({el:t,existingSizes:e,ixSizes:i,elHasAttributes:s,_window:n});if(r!==e){n.requestAnimationFrame(()=>{t.setAttribute("sizes",r)})}};const n=({el:t,existingSizes:e,ixSizes:i,_window:n})=>{const s=t.hasAttributes();const r=o.rICShim(n);const a=o.debounce(()=>{r(()=>c({el:t,existingSizes:e,ixSizes:i,_window:n,elHasAttributes:s}))},u);n.addEventListener("resize",a,false);return l({el:t,parent:t.parentNode,width:t.offsetWidth})+"px"};const h={getElementWidth:l,imgCanBeSized:a,updateOnResize:n};e.exports=h},{"./util":7}],4:[function(t,e,i){e.exports={host:null,useHttps:true,includeLibraryParam:true,defaultParams:{},srcAttribute:"src",srcsetAttribute:"srcset",sizesAttribute:"sizes",srcInputAttribute:"ix-src",pathInputAttribute:"ix-path",paramsInputAttribute:"ix-params",hostInputAttribute:"ix-host",window:typeof window!=="undefined"?window:null}},{}],5:[function(e,t,i){(function(r){(function(){var a=e("./ImgixTag.js"),o=e("./util.js"),s=e("./defaultConfig");var t="3.6.1";r.imgix={init:function(t){var e=o.shallowClone(this.config);o.extend(e,t||{});var i=["img["+e.srcInputAttribute+"]","source["+e.srcInputAttribute+"]","img["+e.pathInputAttribute+"]","source["+e.pathInputAttribute+"]"].join(",");var n=document.querySelectorAll(i);for(var s=0,r;s<n.length;s++){new a(n[s],e)}},config:s,VERSION:t};o.domReady(function(){o.objectEach(s,function(t,e){var i=o.getMetaTagValue(e);if(typeof i!=="undefined"){var n=typeof s[e];if(n==="boolean"){r.imgix.config[e]=!!i}else if(n==="object"&&s[e]!=null){r.imgix.config[e]=JSON.parse(i)||{}}else{r.imgix.config[e]=i}}});if(o.getMetaTagValue("autoInit")!==false){r.imgix.init()}})}).call(this)}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"./ImgixTag.js":2,"./defaultConfig":4,"./util.js":7}],6:[function(t,e,i){function n(){var t=[];var e=100;var i=8;var n=8192;function s(t){return 2*Math.round(t/2)}while(e<=n){t.push(s(e));e*=1+i/100*2}return t}e.exports=n()},{}],7:[function(t,e,i){const n=t("lodash.debounce");e.exports={compact:function(t){var e=[];for(var i=0;i<t.length;i++){t[i]&&e.push(t[i])}return e},shallowClone:function(t){var e={};for(var i in t){e[i]=t[i]}return e},extend:function(t,e){for(var i in e){t[i]=e[i]}return t},uniq:function(t){var e={},i=[],n;for(n=0;n<t.length;n++){if(!e[t[n]]){e[t[n]]=true;i.push(t[n])}}return i},objectEach:function(t,e){for(var i in t){if(t.hasOwnProperty(i)){e(t[i],i)}}},isString:function(t){return typeof t==="string"},encode64:function(t){var e=unescape(encodeURIComponent(t)),i=btoa(e),n=i.replace(/\+/g,"-");n=n.replace(/\//g,"_").replace(/\//g,"_").replace(/\=+$/,"");return n},decode64:function(t){var e=t.replace(/-/g,"+").replace(/_/g,"/"),i=atob(e),n=decodeURIComponent(escape(i));return n},domReady:function(t){if(document.readyState==="complete"){setTimeout(t,0)}else if(document.addEventListener){document.addEventListener("DOMContentLoaded",t,false)}else{document.attachEvent("onreadystatechange",function(){if(document.readyState==="complete"){t()}})}},getMetaTagValue:function(t){var e=document.querySelector('meta[property="ix:'+t+'"]'),i;if(!e){return}i=e.getAttribute("content");if(i==="true"){return true}else if(i==="false"){return false}else if(i===""||i==="null"){return null}else{return i}},debounce:n,rICShim:function(t){return t.requestIdleCallback||function(t){var e=Date.now();return setTimeout(function(){t({didTimeout:false,timeRemaining:function(){return Math.max(0,50-(Date.now()-e))}})},1)}}}},{"lodash.debounce":1}]},{},[5]);
diff --git a/package.json b/package.json
index 8074e7f6..2de7a657 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "imgix.js",
-  "version": "3.6.1",
+  "version": "4.0.0",
   "description": "imgix.js is a dependency-free JavaScript library that allows you to easily use the imgix API to make images on your site or app responsive to device size and pixel density. imgix.js allows for intuitive use of imgix features such as text formatting, color palette extraction, color adjustments, effects, and watermarking. imgix.js requires an imgix account to use your own images. Sign up at imgix.com",
   "license": "BSD-2-Clause",
   "repository": {
diff --git a/src/imgix.js b/src/imgix.js
index 465c9923..451eebcc 100644
--- a/src/imgix.js
+++ b/src/imgix.js
@@ -2,7 +2,7 @@ var ImgixTag = require('./ImgixTag.js'),
   util = require('./util.js'),
   defaultConfig = require('./defaultConfig');
 
-var VERSION = '3.6.1';
+var VERSION = '4.0.0';
 
 global.imgix = {
   init: function (opts) {