A flick through the feed no longer drags background work through the middle of it. "When I flick to scroll, it's not getting up to speed very quickly, and clicking around in the app feels a bit sluggish at times" (Adam, 2026-11-07). Measured on his Pixel 9 in the installed PWA: idle is quiet (0.16 s of script in 10 s), but three real flicks through Following spent 1.7 s of 9 on the main thread, frames up to 200 ms, and the work was the avatar thumbnailer finishing faces as they scrolled in: a synchronous canvas.toDataURL WebP encode per face (229 ms), the profile cache JSON.stringified twice per half-second flush (once just to measure it, up to ~2 MB with thumbnails), and a whole-page repaint per finished face that changes nothing on screen (feed rows keep the face they were admitted with). Now: the crop, resize and encode happen off the main thread (createImageBitmap with resizeWidth/Height, OffscreenCanvas.convertToBlob, FileReader), with the old canvas path as the fallback; a finished face is recorded once the page settles; scheduleRepaint holds while a finger is down or the page scrolled in the last 200 ms (at most 1.5 s), and the profile flush likewise (at most 5 s, forced on an account switch) and sizes the blob by summing rows instead of stringifying it. Tests: the create flow's heads-up / passphrase / check steps from earlier today broke every test that made a wallet by waiting for the words and clicking "Skip verification"; tools/puppeteer.js exports seedWords() and skipSeedCheck() and the 96 tests use them. room-faces and avatar-profile fail the same way on 8858591 (row.hover, scrollIntoView), before today's changes

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01VMan6Ts5Tktega8VbLg31q

1 files changed, 3 insertions, 3 deletions

diff --git a/tools/profile-repost-test.js b/tools/profile-repost-test.js
index 7825efe..5ee97e7 100644
--- a/tools/profile-repost-test.js
+++ b/tools/profile-repost-test.js
@@ -4,7 +4,7 @@
 // boost, a video event still has its clip — they were all saved as kind 1
 // notes, so a boost came back as "reply · {"content":…}".
 // Run: bun tools/profile-repost-test.js
-import puppeteer from './puppeteer.js';
+import puppeteer, { seedWords, skipSeedCheck } from './puppeteer.js';
 import { generateSecretKey, getPublicKey, finalizeEvent } from 'nostr-tools/pure';
 import { npubEncode } from 'nostr-tools/nip19';
 import { buildHtml } from '../build.js';
@@ -57,8 +57,8 @@ try {
   await page.evaluate(() => localStorage.setItem('btc-wallet-network', 'regtest'));
   await page.reload({ waitUntil: 'domcontentloaded' }); await sleep(400);
   await click('create a new wallet'); await sleep(600);
-  await page.waitForSelector('.words .w .t');
-  await click('skip verification');
+  await seedWords(page);
+  await skipSeedCheck(page);
   await waitText('receive', 20000);
   await page.goto(server.url.href + npubEncode(ME.pk), { waitUntil: 'domcontentloaded' });
   await look('from the relays');