diff --git a/tests/page-smoke.js b/tests/page-smoke.js
index ca1c716..8a810b1 100644
--- a/tests/page-smoke.js
+++ b/tests/page-smoke.js
@@ -68,6 +68,18 @@ for (const [name, fn] of drive) {
   }
 }
 
+// A trace is one tap's (#219): the same id while requests keep coming, a new one after a quiet
+// minute, so a refresh hours later is not filed under the last tap.
+if (PAGE === 'index.html') {
+  const id = () => ctx.traceparent().split('-')[1];
+  vm.runInContext('Date.now = (n => () => n)(1e12)', ctx);
+  const first = id();
+  vm.runInContext('Date.now = (n => () => n)(1e12 + 30_000)', ctx);
+  if (id() !== first) { console.error('FAIL: a trace ended 30 s into a tap'); process.exit(1); }
+  vm.runInContext('Date.now = (n => () => n)(1e12 + 120_000)', ctx);
+  if (id() === first) { console.error('FAIL: a trace outlived a quiet minute'); process.exit(1); }
+}
+
 // theme.ts keeps the Settings theme controls in step when Settings is open, and looks before it
 // touches them. The admin page has no Settings, so those are the ones it may ask for and not find.
 const OPTIONAL = new Set(['#stheme', '#smode', '#smodefield']);
diff --git a/web/CHANGELOG.md b/web/CHANGELOG.md
index 82d8865..bc19f06 100644
--- a/web/CHANGELOG.md
+++ b/web/CHANGELOG.md
@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- A live update or a list refresh that fails because the network is gone (a laptop asleep) is no longer reported as an error, an error page from Cloudflare no longer becomes a request's message, and requests a minute or more after a tap start a trace of their own instead of joining that tap's (#219).
+
 ## [1.0.0] - 2026-10-12
 
 ### Added
diff --git a/web/src/events.ts b/web/src/events.ts
index b859482..a99f734 100644
--- a/web/src/events.ts
+++ b/web/src/events.ts
@@ -15,7 +15,8 @@ function connect(){
   // Back after a drop: whatever was sent meanwhile went to nobody.
   sse.onopen=()=>{ if(dropped){ dropped=false; catchUp(); } };
   const soon=(fn,ms=500)=>{ let t; return ()=>{ clearTimeout(t); t=setTimeout(fn,ms); }; };
-  const refreshEntries=soon(()=>{ if(S.feed) loadEntries(); });
+  // Caught: a network gone when one fires (a laptop asleep) was an unhandled rejection (#219).
+  const refreshEntries=soon(()=>{ if(S.feed) loadEntries().catch(()=>{}); });
   // Every scan's events reach everyone; only this person's feeds are theirs to show or refresh.
   const mine=id=>S.feeds.some(f=>f.id===id);
   sse.onmessage=m=>{
@@ -70,4 +71,4 @@ function connect(){
   sse.onerror=()=>{ sse.close(); dropped=true; setTimeout(connect,4000); };
 }
 connect();
-loadFeeds();
+loadFeeds().catch(()=>{});
diff --git a/web/src/util.ts b/web/src/util.ts
index 73f32b6..37416df 100644
--- a/web/src/util.ts
+++ b/web/src/util.ts
@@ -72,11 +72,18 @@ function spanText(secs){
 }
 /// One trace for each thing you do (#190): the requests a tap or a key sets off share a trace id,
 /// sent as traceparent, so Tempo shows them together. getRandomValues, not randomUUID, which a
-/// LAN address over plain HTTP does not have.
-let traceId='';
+/// LAN address over plain HTTP does not have. A trace ends after a minute with no request in it:
+/// the requests a live update or a woken laptop sets off hours later used to join the last tap's
+/// trace, which then lasted nine hours (#219). A play's position saves, every ten seconds, keep it.
+let traceId='', traceAt=0;
 const hex=(n: number)=>Array.from(crypto.getRandomValues(new Uint8Array(n)),b=>b.toString(16).padStart(2,'0')).join('');
-for(const t of ['pointerdown','keydown']) window.addEventListener(t,()=>{ traceId=hex(16); },{capture:true,passive:true});
-function traceparent(){ return `00-${traceId||=hex(16)}-${hex(8)}-01`; }
+for(const t of ['pointerdown','keydown']) window.addEventListener(t,()=>{ traceId=hex(16); traceAt=Date.now(); },{capture:true,passive:true});
+function traceparent(){
+  const now=Date.now();
+  if(!traceId||now-traceAt>60_000) traceId=hex(16);
+  traceAt=now;
+  return `00-${traceId}-${hex(8)}-01`;
+}
 
 /// Something that went wrong, or how long something took, in the browser, for the server's log
 /// (#190). The same thing at most once a minute: a failure in a loop would otherwise send a line
@@ -95,7 +102,9 @@ window.addEventListener('unhandledrejection',e=>report('rejection',{msg:String(e
 async function api(url: string, opts?: RequestInit): Promise<any>{
   const r = await fetch(url,{headers:{'Content-Type':'application/json',traceparent:traceparent()},...opts});
   if(r.status===401){ location.href='/login'; throw new Error('signed out'); }
-  if(!r.ok) throw new Error(await r.text().catch(()=>'')||String(r.status));
+  // A page in place of ipx's words is Cloudflare or Caddy answering for it: the message became a
+  // whole 502 page (#219).
+  if(!r.ok) throw new Error((!/html/.test(r.headers.get('Content-Type')||'')&&await r.text().catch(()=>''))||`${r.status} ${r.statusText}`.trim());
   return r.status===204?null:r.json().catch(()=>null);
 }
 // navigator.clipboard only exists in a secure context. Served over plain HTTP on a LAN