diff --git a/packages/html2/src/html.ts b/packages/html2/src/html.ts
index ffb5bc7..f6a2f8f 100644
--- a/packages/html2/src/html.ts
+++ b/packages/html2/src/html.ts
@@ -15,9 +15,10 @@ export function escape(s: string): string {
 export type HtmlFragment = string | number | Node | Array<HtmlFragment>;
 
 const tag = randomId(8, true);
-const placeholderRe = new RegExp(`X-${tag}-(\\d+)-${tag}-X`, 'g');
+const onePlaceholderRe = new RegExp(`x-${tag}-(\\d+)-${tag}-x`);
+const allPlaceholdersRe = new RegExp(`x-${tag}-(\\d+)-${tag}-x`, 'g');
 function placeholder(n: number): string {
-    return `X-${tag}-${n}-${tag}-X`;
+    return `x-${tag}-${n}-${tag}-x`;
 }
 
 function splitByPlaceholders(s: string): { constantParts: string[], placeholders: number[] } {
@@ -25,10 +26,10 @@ function splitByPlaceholders(s: string): { constantParts: string[], placeholders
     let lastConstantStart = 0;
     const constantParts: string[] = [];
     const placeholders: number[] = [];
-    while ((match = placeholderRe.exec(s)) !== null) {
+    while ((match = allPlaceholdersRe.exec(s)) !== null) {
         constantParts.push(s.substring(lastConstantStart, match.index));
         placeholders.push(parseInt(match[1], 10));
-        lastConstantStart = placeholderRe.lastIndex;
+        lastConstantStart = allPlaceholdersRe.lastIndex;
     }
     constantParts.push(s.substring(lastConstantStart));
     return { constantParts, placeholders };
@@ -82,8 +83,8 @@ function nodeInserter(n: number): PlaceholderAction {
 function attributesInserter(n: number): PlaceholderAction {
     return (vs, node) => {
         const e = document.createElement('template');
-        e.innerHTML = `<x-dummy ${renderFragment(vs[n], true).join('')}></x-dummy>`;
-        Array.from(e.attributes).forEach(a =>
+        e.innerHTML = `<x-dummy ${renderFragment(vs[n], false).join('')}></x-dummy>`;
+        Array.from(e.content.firstElementChild!.attributes).forEach(a =>
             (node as Element).setAttribute(a.name, a.value));
     };
 }
@@ -146,7 +147,7 @@ export class HtmlFragmentBuilder {
         for (let i = 0; i < e.attributes.length; i++) {
             const attr = e.attributes[i];
             const attrName = attr.name;
-            const nameIsPlaceholder = attrName.match(placeholderRe);
+            const nameIsPlaceholder = attrName.match(onePlaceholderRe);
             if (nameIsPlaceholder !== null) {
                 e.removeAttributeNode(attr);
                 i--;