diff --git a/dist/dde-with-observables.js b/dist/dde-with-observables.js
index e7970a1..6720c35 100644
--- a/dist/dde-with-observables.js
+++ b/dist/dde-with-observables.js
@@ -1,31 +1,31 @@
 //deka-dom-el library is available via global namespace `dde`
 (()=> {
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\ No newline at end of file
diff --git a/dist/dde.js b/dist/dde.js
index b2d06f7..4005c82 100644
--- a/dist/dde.js
+++ b/dist/dde.js
@@ -1,25 +1,25 @@
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index d6d0b6f..76ef113 100644
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diff --git a/dist/esm.js b/dist/esm.js
index 15c75ca..450f448 100644
--- a/dist/esm.js
+++ b/dist/esm.js
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s)if(u.type==="childList"){if(h(u.addedNodes,!0)){i();continue}l(u.removedNodes,!0)&&i()}});return{onConnected(s,u){o();let f=r(s);f.connected.has(u)||(f.connected.add(u),f.length_c+=1)},offConnected(s,u){if(!t.has(s))return;let f=t.get(s);f.connected.has(u)&&(f.connected.delete(u),f.length_c-=1,c(s,f))},onDisconnected(s,u){o();let f=r(s);f.disconnected.has(u)||(f.disconnected.add(u),f.length_d+=1)},offDisconnected(s,u){if(!t.has(s))return;let f=t.get(s);f.disconnected.has(u)&&(f.disconnected.delete(u),f.length_d-=1,c(s,f))}};function c(s,u){u.length_c||u.length_d||(t.delete(s),i())}function r(s){if(t.has(s))return t.get(s);let u={connected:new WeakSet,length_c:0,disconnected:new WeakSet,length_d:0};return t.set(s,u),u}function o(){e||(e=!0,n.observe(a.D.body,{childList:!0,subtree:!0}))}function i(){!e||t.size||(e=!1,n.disconnect())}function d(){return new Promise(function(s){(requestIdleCallback||requestAnimationFrame)(s)})}async function p(s){t.size>30&&await d();let u=[];if(!(s instanceof Node))return u;for(let f of t.keys())f===s||!(f instanceof Node)||s.contains(f)&&u.push(f);return u}function h(s,u){let f=!1;for(let b of s){if(u&&p(b).then(h),!t.has(b))continue;let m=t.get(b);m.length_c&&(b.dispatchEvent(new Event("dde:connected")),m.connected=new WeakSet,m.length_c=0,m.length_d||t.delete(b),f=!0)}return f}function l(s,u){let f=!1;for(let b of s){if(u&&p(b).then(l),!t.has(b)||!t.get(b).length_d)continue;let P=D(b);b[g]==="dde"?(queueMicrotask||setTimeout)(P):P(),f=!0}return f}function D(s){return()=>{s.isConnected||(s.dispatchEvent(new Event("dde:disconnected")),t.delete(s))}}}export{w as assign,$ as assignAttribute,G as chainableAppend,J as classListDeclarative,M as createElement,at as createElementNS,gt as customElementRender,vt as customElementWithDDE,mt as dispatchEvent,M as el,at as elNS,K as elementAttribute,dt as empty,vt as lifecycleToEvents,tt as observedAttributes,C as on,B as registerReactivity,E as scope,ft as simulateSlots};
+var y={isObservable(t){return!1},processReactiveAttribute(t,e,n,r){return n}};function H(t,e=!0){return e?Object.assign(y,t):(Object.setPrototypeOf(t,y),t)}function D(t){return y.isPrototypeOf(t)&&t!==y?t:y}function E(t){return typeof t>"u"}function R(t,e){if(!t||!(t instanceof AbortSignal))return!0;if(!t.aborted)return t.addEventListener("abort",e),function(){t.removeEventListener("abort",e)}}function M(t,e){let{observedAttributes:n=[]}=t.constructor;return n.reduce(function(r,o){return Reflect.set(r,z(o),e(t,o)),r},{})}function z(t){return t.replace(/-./g,e=>e[1].toUpperCase())}var a={setDeleteAttr:B,ssr:"",D:globalThis.document,F:globalThis.DocumentFragment,H:globalThis.HTMLElement,S:globalThis.SVGElement,M:globalThis.MutationObserver};function B(t,e,n){if(Reflect.set(t,e,n),!!E(n)){if(Reflect.deleteProperty(t,e),t instanceof a.H&&t.getAttribute(e)==="undefined")return t.removeAttribute(e);if(Reflect.get(t,e)==="undefined")return Reflect.set(t,e,"")}}var x="__dde_lifecycleToEvents";var g=[{get scope(){return a.D.body},host:t=>t?t(a.D.body):a.D.body,custom_element:!1,prevent:!0}],v={get current(){return g[g.length-1]},get host(){return this.current.host},preventDefault(){let{current:t}=this;return t.prevent=!0,t},get state(){return[...g]},push(t={}){return g.push(Object.assign({},this.current,{prevent:!1},t))},pushRoot(){return g.push(g[0])},pop(){if(g.length!==1)return g.pop()}};function k(...t){return this.appendOriginal(...t),this}function I(t){return t.append===k||(t.appendOriginal=t.append,t.append=k),t}var O;function L(t,e,...n){let r=D(this),o=0,c,i;switch((Object(e)!==e||r.isObservable(e))&&(e={textContent:e}),!0){case typeof t=="function":{o=1,v.push({scope:t,host:(...h)=>h.length?(o===1?n.unshift(...h):h.forEach(l=>l(i)),void 0):i}),c=t(e||void 0);let d=c instanceof a.F;if(c.nodeName==="#comment")break;let p=L.mark({type:"component",name:t.name,host:d?"this":"parentElement"});c.prepend(p),d&&(i=p);break}case t==="#text":c=A.call(this,a.D.createTextNode(""),e);break;case(t==="<>"||!t):c=A.call(this,a.D.createDocumentFragment(),e);break;case!!O:c=A.call(this,a.D.createElementNS(O,t),e);break;case!c:c=A.call(this,a.D.createElement(t),e)}return I(c),i||(i=c),n.forEach(d=>d(i)),o&&v.pop(),o=2,c}function it(t,e=t,n=void 0){let r=Symbol.for("default"),o=Array.from(e.querySelectorAll("slot")).reduce((i,d)=>Reflect.set(i,d.name||r,d)&&i,{}),c=Reflect.has(o,r);if(t.append=new Proxy(t.append,{apply(i,d,p){if(!p.length)return t;let h=a.D.createDocumentFragment();for(let l of p){if(!l||!l.slot){c&&h.appendChild(l);continue}let C=l.slot,s=o[C];V(l,"remove","slot"),s&&(Z(s,l,n),Reflect.deleteProperty(o,C))}return c&&(o[r].replaceWith(h),Reflect.deleteProperty(o,r)),t.append=i,t}}),t!==e){let i=Array.from(t.childNodes);i.forEach(d=>d.remove()),t.append(...i)}return e}function Z(t,e,n){n&&n(t,e);try{t.replaceWith(A(e,{className:[e.className,t.className],dataset:{...t.dataset}}))}catch{t.replaceWith(e)}}L.mark=function(t,e=!1){t=Object.entries(t).map(([o,c])=>o+`="${c}"`).join(" ");let n=e?"":"/",r=a.D.createComment(`<dde:mark ${t}${a.ssr}${n}>`);return e&&(r.end=a.D.createComment("</dde:mark>")),r};function ut(t){let e=this;return function(...r){O=t;let o=L.call(e,...r);return O=void 0,o}}var _=new WeakMap,{setDeleteAttr:W}=a;function A(t,...e){if(!e.length)return t;_.set(t,F(t,this));for(let[n,r]of Object.entries(Object.assign({},...e)))q.call(this,t,n,r);return _.delete(t),t}function q(t,e,n){let{setRemoveAttr:r,s:o}=F(t,this),c=this;n=o.processReactiveAttribute(t,e,n,(d,p)=>q.call(c,t,d,p));let[i]=e;if(i==="=")return r(e.slice(1),n);if(i===".")return j(t,e.slice(1),n);if(/(aria|data)([A-Z])/.test(e))return e=e.replace(/([a-z])([A-Z])/g,"$1-$2").toLowerCase(),r(e,n);switch(e==="className"&&(e="class"),e){case"xlink:href":return r(e,n,"http://www.w3.org/1999/xlink");case"textContent":return W(t,e,n);case"style":if(typeof n!="object")break;case"dataset":return N(o,n,j.bind(null,t[e]));case"ariaset":return N(o,n,(d,p)=>r("aria-"+d,p));case"classList":return G.call(c,t,n)}return J(t,e)?W(t,e,n):r(e,n)}function F(t,e){if(_.has(t))return _.get(t);let r=(t instanceof a.S?Q:K).bind(null,t,"Attribute"),o=D(e);return{setRemoveAttr:r,s:o}}function G(t,e){let n=D(this);return N(n,e,(r,o)=>t.classList.toggle(r,o===-1?void 0:!!o)),t}function ft(t){return Array.from(t.children).forEach(e=>e.remove()),t}function V(t,e,n,r){return t instanceof a.H?t[e+"Attribute"](n,r):t[e+"AttributeNS"](null,n,r)}function J(t,e){if(!Reflect.has(t,e))return!1;let n=$(t,e);return!E(n.set)}function $(t,e){if(t=Object.getPrototypeOf(t),!t)return{};let n=Object.getOwnPropertyDescriptor(t,e);return n||$(t,e)}function N(t,e,n){if(!(typeof e!="object"||e===null))return Object.entries(e).forEach(function([o,c]){o&&(c=t.processReactiveAttribute(e,o,c,n),n(o,c))})}function U(t){return Array.isArray(t)?t.filter(Boolean).join(" "):t}function K(t,e,n,r){return t[(E(r)?"remove":"set")+e](n,U(r))}function Q(t,e,n,r,o=null){return t[(E(r)?"remove":"set")+e+"NS"](o,n,U(r))}function j(t,e,n){if(Reflect.set(t,e,n),!!E(n))return Reflect.deleteProperty(t,e)}function ht(t,e,n=X){v.push({scope:t,host:(...o)=>o.length?o.forEach(c=>c(t)):t,custom_element:t}),typeof n=="function"&&(n=n.call(t,t));let r=e.call(t,n);return v.pop(),r}function bt(t){return T(t.prototype,"connectedCallback",function(e,n,r){e.apply(n,r),n.dispatchEvent(new Event("dde:connected"))}),T(t.prototype,"disconnectedCallback",function(e,n,r){e.apply(n,r),(queueMicrotask||setTimeout)(()=>!n.isConnected&&n.dispatchEvent(new Event("dde:disconnected")))}),T(t.prototype,"attributeChangedCallback",function(e,n,r){let[o,,c]=r;n.dispatchEvent(new CustomEvent("dde:attributeChanged",{detail:[o,c]})),e.apply(n,r)}),t.prototype[x]=!0,t}function T(t,e,n){t[e]=new Proxy(t[e]||(()=>{}),{apply:n})}function X(t){return M(t,(e,n)=>e.getAttribute(n))}function xt(t,e,n){return e||(e={}),function(o,...c){n&&(c.unshift(o),o=typeof n=="function"?n():n);let i=c.length?new CustomEvent(t,Object.assign({detail:c[0]},e)):new Event(t,e);return o.dispatchEvent(i)}}function w(t,e,n){return function(o){return o.addEventListener(t,e,n),o}}var S=a.M?tt():new Proxy({},{get(){return()=>{}}}),Y=new WeakSet;w.connected=function(t,e){let{custom_element:n}=v.current,r="connected";return typeof e!="object"&&(e={}),e.once=!0,function(c){n&&(c=n);let i="dde:"+r;return c.addEventListener(i,t,e),c[x]?c:c.isConnected?(c.dispatchEvent(new Event(i)),c):(R(e.signal,()=>S.offConnected(c,t))&&S.onConnected(c,t),c)}};w.disconnected=function(t,e){let{custom_element:n}=v.current,r="disconnected";return typeof e!="object"&&(e={}),e.once=!0,function(c){n&&(c=n);let i="dde:"+r;return c.addEventListener(i,t,e),c[x]||R(e.signal,()=>S.offDisconnected(c,t))&&S.onDisconnected(c,t),c}};var P=new WeakMap;w.disconnectedAsAbort=function(t){if(P.has(t))return P.get(t);let e=new AbortController;return P.set(t,e),t(w.disconnected(()=>e.abort())),e};w.attributeChanged=function(t,e){let n="attributeChanged";return typeof e!="object"&&(e={}),function(o){let c="dde:"+n;if(o.addEventListener(c,t,e),o[x]||Y.has(o)||!a.M)return o;let i=new a.M(function(p){for(let{attributeName:h,target:l}of p)l.dispatchEvent(new CustomEvent(c,{detail:[h,l.getAttribute(h)]}))});return R(e.signal,()=>i.disconnect())&&i.observe(o,{attributes:!0}),o}};function tt(){let t=new Map,e=!1,n=new a.M(function(s){for(let u of s)if(u.type==="childList"){if(h(u.addedNodes,!0)){i();continue}l(u.removedNodes,!0)&&i()}});return{onConnected(s,u){c();let f=o(s);f.connected.has(u)||(f.connected.add(u),f.length_c+=1)},offConnected(s,u){if(!t.has(s))return;let f=t.get(s);f.connected.has(u)&&(f.connected.delete(u),f.length_c-=1,r(s,f))},onDisconnected(s,u){c();let f=o(s);f.disconnected.has(u)||(f.disconnected.add(u),f.length_d+=1)},offDisconnected(s,u){if(!t.has(s))return;let f=t.get(s);f.disconnected.has(u)&&(f.disconnected.delete(u),f.length_d-=1,r(s,f))}};function r(s,u){u.length_c||u.length_d||(t.delete(s),i())}function o(s){if(t.has(s))return t.get(s);let u={connected:new WeakSet,length_c:0,disconnected:new WeakSet,length_d:0};return t.set(s,u),u}function c(){e||(e=!0,n.observe(a.D.body,{childList:!0,subtree:!0}))}function i(){!e||t.size||(e=!1,n.disconnect())}function d(){return new Promise(function(s){(requestIdleCallback||requestAnimationFrame)(s)})}async function p(s){t.size>30&&await d();let u=[];if(!(s instanceof Node))return u;for(let f of t.keys())f===s||!(f instanceof Node)||s.contains(f)&&u.push(f);return u}function h(s,u){let f=!1;for(let b of s){if(u&&p(b).then(h),!t.has(b))continue;let m=t.get(b);m.length_c&&(b.dispatchEvent(new Event("dde:connected")),m.connected=new WeakSet,m.length_c=0,m.length_d||t.delete(b),f=!0)}return f}function l(s,u){let f=!1;for(let b of s)u&&p(b).then(l),!(!t.has(b)||!t.get(b).length_d)&&((queueMicrotask||setTimeout)(C(b)),f=!0);return f}function C(s){return()=>{s.isConnected||(s.dispatchEvent(new Event("dde:disconnected")),t.delete(s))}}}export{A as assign,q as assignAttribute,I as chainableAppend,G as classListDeclarative,L as createElement,ut as createElementNS,ht as customElementRender,bt as customElementWithDDE,xt as dispatchEvent,L as el,ut as elNS,V as elementAttribute,ft as empty,bt as lifecycleToEvents,X as observedAttributes,w as on,H as registerReactivity,v as scope,it as simulateSlots};
diff --git a/docs/p03-events.html b/docs/p03-events.html
index cd6c5b4..c48c2a9 100644
--- a/docs/p03-events.html
+++ b/docs/p03-events.html
@@ -67,7 +67,7 @@ document.body.append(
 function log({ type, detail }){
 	console.log({ _this: this, type, detail });
 }
-</code></div><script>Flems(document.getElementById("code-example-1-35hjjp3e4js"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el, on } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-observables.js\\\";\\nconst paragraph= el(\\\"p\\\", \\\"See live-cycle events in console.\\\",\\n\\tel=> log({ type: \\\"dde:created\\\", detail: el }),\\n\\ton.connected(log),\\n\\ton.disconnected(log),\\n\\ton.attributeChanged(log));\\n\\ndocument.body.append(\\n\\tparagraph,\\n\\tel(\\\"button\\\", \\\"Update attribute\\\", on(\\\"click\\\", ()=> paragraph.setAttribute(\\\"test\\\", Math.random().toString()))),\\n\\t\\\" \\\",\\n\\tel(\\\"button\\\", \\\"Remove\\\", on(\\\"click\\\", ()=> paragraph.remove()))\\n);\\n\\n/** @param {Partial<CustomEvent>} event */\\nfunction log({ type, detail }){\\n\\tconsole.log({ _this: this, type, detail });\\n}\\n\"}],\"toolbar\":false}"));</script><p>For Custom elements, we will later introduce a way to replace <code>*Callback</code> syntax with <code>dde:*</code> events. The <code>on.*</code> functions then listen to the appropriate Custom Elements events (see <a href="https://developer.mozilla.org/en-US/docs/Web/API/Web_components/Using_custom_elements#custom_element_lifecycle_callbacks">Custom element lifecycle callbacks | MDN</a>).</p><p>But, in case of regular elemnets the <a href="https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver"><code>MutationObserver</code> | MDN</a> is internaly used to track these events. Therefore, there are some drawbacks:</p><ul><li>To proper listener registration, you need to use <code>on.*</code> not `on("dde:*", …)`!</li><li>Use sparingly! Internally, library must loop of all registered events and fires event properly. <strong>It is good practice to use the fact that if an element is removed, its children are also removed!</strong> In this spirit, we will introduce later the <strong>host</strong> syntax to register clean up procedures when the component is removed from the app.</li></ul><h3 id="h-final-notes"><!--<dde:mark type="component" name="h3" host="parentElement" ssr/>--><a href="#h-final-notes" tabindex="-1">#</a> Final notes</h3><p>The library also provides a&nbsp;method to dispatch the events.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-example-2-b6a1hbrxh7s" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el, on, dispatchEvent } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-observables.js";
+</code></div><script>Flems(document.getElementById("code-example-1-35hjjp3e4js"), JSON.parse("{\"files\":[{\"name\":\".js\",\"content\":\"import { el, on } from \\\"https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-observables.js\\\";\\nconst paragraph= el(\\\"p\\\", \\\"See live-cycle events in console.\\\",\\n\\tel=> log({ type: \\\"dde:created\\\", detail: el }),\\n\\ton.connected(log),\\n\\ton.disconnected(log),\\n\\ton.attributeChanged(log));\\n\\ndocument.body.append(\\n\\tparagraph,\\n\\tel(\\\"button\\\", \\\"Update attribute\\\", on(\\\"click\\\", ()=> paragraph.setAttribute(\\\"test\\\", Math.random().toString()))),\\n\\t\\\" \\\",\\n\\tel(\\\"button\\\", \\\"Remove\\\", on(\\\"click\\\", ()=> paragraph.remove()))\\n);\\n\\n/** @param {Partial<CustomEvent>} event */\\nfunction log({ type, detail }){\\n\\tconsole.log({ _this: this, type, detail });\\n}\\n\"}],\"toolbar\":false}"));</script><p>For Custom elements, we will later introduce a way to replace <code>*Callback</code> syntax with <code>dde:*</code> events. The <code>on.*</code> functions then listen to the appropriate Custom Elements events (see <a href="https://developer.mozilla.org/en-US/docs/Web/API/Web_components/Using_custom_elements#custom_element_lifecycle_callbacks">Custom element lifecycle callbacks | MDN</a>).</p><p>But, in case of regular elemnets the <a href="https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver"><code>MutationObserver</code> | MDN</a> is internaly used to track these events. Therefore, there are some drawbacks:</p><ul><li>To proper listener registration, you need to use <code>on.*</code> not `on("dde:*", …)`!</li><li>Use sparingly! Internally, library must loop of all registered events and fires event properly. <strong>It is good practice to use the fact that if an element is removed, its children are also removed!</strong> In this spirit, we will introduce later the <strong>host</strong> syntax to register clean up procedures when the component is removed from the app.</li></ul><p>To provide intuitive behaviour, similar also to how the life-cycle events works in other frameworks/libraries, deka-dom-el library ensures that <code>on.connected</code> and <code>on.disconnected</code> are called only once and only when the element is (dis)connected to live DOM. The solution is inspired by <a href="https://vuejs.org/guide/extras/web-components.html#lifecycle" title="Vue and Web Components | Lifecycle">Vue</a>. For using native behaviour re-(dis)connecting element, use:</p><ul><li>custom <code>MutationObserver</code> or logic in (dis)<div class="code"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js"></code></div> or…</li><li>re-add <code>on.connected</code> or <code>on.disconnected</code> listeners.</li></ul><h3 id="h-final-notes"><!--<dde:mark type="component" name="h3" host="parentElement" ssr/>--><a href="#h-final-notes" tabindex="-1">#</a> Final notes</h3><p>The library also provides a&nbsp;method to dispatch the events.</p><!--<dde:mark type="component" name="example" host="this" ssr/>--><div id="code-example-2-b6a1hbrxh7s" class="example"><!--<dde:mark type="component" name="code" host="parentElement" ssr/>--><code class="language-js">import { el, on, dispatchEvent } from "https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/esm-with-observables.js";
 document.body.append(
 	el("p", "Listenning to `test` event.", on("test", console.log)).append(
 		el("br"),
diff --git a/docs_src/p03-events.html.js b/docs_src/p03-events.html.js
index b0def3a..451617f 100644
--- a/docs_src/p03-events.html.js
+++ b/docs_src/p03-events.html.js
@@ -108,6 +108,17 @@ export function page({ pkg, info }){
 				" clean up procedures when the component is removed from the app."
 			),
 		),
+		el("p").append(
+			"To provide intuitive behaviour, similar also to how the life-cycle events works in other",
+			" frameworks/libraries, deka-dom-el library ensures that ", el("code", "on.connected"),
+			" and ", el("code", "on.disconnected"), " are called only once and only when the element",
+			" is (dis)connected to live DOM. The solution is inspired by ", el("a", { textContent: "Vue", href: "https://vuejs.org/guide/extras/web-components.html#lifecycle", title: "Vue and Web Components | Lifecycle" }), ".",
+			" For using native behaviour re-(dis)connecting element, use:"
+		),
+		el("ul").append(
+			el("li").append("custom ", el("code", "MutationObserver"), " or logic in (dis)", el(code, "connectedCallback"), " or…"),
+			el("li").append("re-add ", el("code", "on.connected"), " or ", el("code", "on.disconnected"), " listeners.")
+		),
 
 		el(h3, "Final notes"),
 		el("p", "The library also provides a method to dispatch the events."),
diff --git a/src/customElement.js b/src/customElement.js
index f5b303e..c3f6c40 100644
--- a/src/customElement.js
+++ b/src/customElement.js
@@ -1,4 +1,4 @@
-import { keyDM, keyLTE } from "./dom-common.js";
+import { keyLTE } from "./dom-common.js";
 import { scope } from "./dom.js";
 export function customElementRender(custom_element, render, props= observedAttributes){
 	scope.push({
@@ -16,14 +16,11 @@ export function lifecycleToEvents(class_declaration){
 		target.apply(thisArg, detail);
 		thisArg.dispatchEvent(new Event("dde:connected"));
 	});
-	if(!class_declaration.prototype[keyDM])
-		class_declaration.prototype[keyDM]= "dde";
 	wrapMethod(class_declaration.prototype, "disconnectedCallback", function(target, thisArg, detail){
 		target.apply(thisArg, detail);
-		const dispatch= ()=> thisArg.dispatchEvent(new Event("dde:disconnected"));
-		if(thisArg[keyDM]!=="dde")
-			return dispatch();
-		(queueMicrotask || setTimeout)(()=> !thisArg.isConnected && dispatch());
+		(queueMicrotask || setTimeout)(
+			()=> !thisArg.isConnected && thisArg.dispatchEvent(new Event("dde:disconnected"))
+		);
 	});
 	wrapMethod(class_declaration.prototype, "attributeChangedCallback", function(target, thisArg, detail){
 		const [ attribute, , value ]= detail;
diff --git a/src/dom-common.js b/src/dom-common.js
index 16e08b4..73dbe6c 100644
--- a/src/dom-common.js
+++ b/src/dom-common.js
@@ -27,4 +27,3 @@ function setDeleteAttr(obj, prop, val){
 		return Reflect.set(obj, prop, "");
 }
 export const keyLTE= "__dde_lifecycleToEvents"; //boolean
-export const keyDM= "__dde_disconnect_mode"; //native (unset) | dde | skip
diff --git a/src/events.js b/src/events.js
index 7e12965..03d7465 100644
--- a/src/events.js
+++ b/src/events.js
@@ -1,5 +1,5 @@
 export { registerReactivity } from './observables-common.js';
-import { enviroment as env, keyDM, keyLTE } from './dom-common.js';
+import { enviroment as env, keyLTE } from './dom-common.js';
 
 export function dispatchEvent(name, options, host){
 	if(!options) options= {};
@@ -32,8 +32,7 @@ on.connected= function(listener, options){
 	const name= "connected";
 	if(typeof options !== "object")
 		options= {};
-	if(typeof options.once !== "boolean")
-		options.once= true;
+	options.once= true;
 	return function registerElement(element){
 		if(custom_element) element= custom_element;
 		const event= "dde:"+name;
@@ -51,11 +50,9 @@ on.disconnected= function(listener, options){
 	const name= "disconnected";
 	if(typeof options !== "object")
 		options= {};
-	if(typeof options.once !== "boolean")
-		options.once= true;
+	options.once= true;
 	return function registerElement(element){
 		if(custom_element) element= custom_element;
-		if(!element[keyDM]) element[keyDM]= "dde";
 		const event= "dde:"+name;
 		element.addEventListener(event, listener, options);
 		if(element[keyLTE]) return element;
@@ -212,11 +209,7 @@ function connectionsChangesObserverConstructor(){
 			
 			const ls= store.get(element);
 			if(!ls.length_d) continue;
-			const dispatch= dispatchRemove(element);
-			if(element[keyDM]==="dde")
-				(queueMicrotask || setTimeout)(dispatch);
-			else
-				dispatch();
+			(queueMicrotask || setTimeout)(dispatchRemove(element));
 			out= true;
 		}
 		return out;