Files
simple/frontend/sw.js
T
catarrh 547ea61708 v3.25.2: the TR tag-form alignment with TS 102 223 6.8.0/6.8.1
The TR's response objects are all Min = N in the spec's own table, and
6.8.0 says such objects "should set the CR flag to comprehension not
required" - so the builders now emit the base tag forms:

- device identities 82 -> 02 (every builder)
- PLI data 93/94/AD/AE/BF/E2/E5 -> 13/14/2D/2E/3F/62/65 (26/63 already
  base); the PWA inline codecs follow
- POLL INTERVAL Duration 84 -> 04
- GET INKEY/INPUT Text string 8D -> 0D
- SELECT ITEM Item identifier 90 -> 10
- Timer identifier/value A4/A5 -> 24/25
(_bip_tr already used the reference traces' 01/02/03.)

The command details now echo the command's tag form (01/81) besides
its qualifier - 6.8.1 requires the object to be identical to the
command's "including the comprehension required flag": the parser
returns cd_tag and _build_tr, _handle_timer_command,
_handle_bip_command, the menu pendings and testscript.build_tr carry
it.  The Result keeps 03/83 (Min = Y).  _tr_data_only strips both tag
styles and the POLL Duration decode accepts 04.

Tests: the base forms per builder + the echo + the PWA drift guards;
883 frontend + 866 Python; sw cache simple-v426.
2026-10-11 13:31:49 +03:00

78 lines
2.1 KiB
JavaScript

const CACHE = 'simple-v426';
const URLS = [
'index.html',
'help.html',
'help-ru.html',
'style.css',
'sim.png',
'favicon.svg',
'icon-192.png',
'icon-512.png',
'manifest.json',
'des-bundle.js',
'aes-bundle.js',
'sim.svg',
'sim_anim.svg',
'nosim.svg',
'uicc_files.json',
];
self.addEventListener('install', e => {
// Fetch the shell with `cache: 'reload'`: a plain addAll() would re-use
// HTTP-cached copies, so a new SW version could precache a stale
// style.css/index.html (the stale-style trap, v3.6.31).
e.waitUntil(
caches.open(CACHE).then(c =>
Promise.all(URLS.map(u => fetch(u, { cache: 'reload' }).then(r => {
if (r && r.ok) return c.put(u, r);
})))
)
);
self.skipWaiting();
});
self.addEventListener('activate', e => {
e.waitUntil(
caches.keys().then(keys =>
Promise.all(keys.filter(k => k !== CACHE).map(k => caches.delete(k)))
).then(() => clients.claim())
);
});
const OFFLINE_RESPONSE = new Response('Offline: page not cached', {
status: 503,
statusText: 'Offline',
headers: { 'Content-Type': 'text/plain' },
});
self.addEventListener('fetch', e => {
if (!e.request.url.startsWith('http')) return;
const path = new URL(e.request.url).pathname;
if (path.startsWith('/api/')) return; // live data, never cache
if (e.request.method !== 'GET') return;
const isNavigate = e.request.mode === 'navigate';
const isSwScript = path.endsWith('/sw.js');
if (isNavigate) {
e.respondWith(
fetch(e.request).then(res => {
const clone = res.clone();
caches.open(CACHE).then(c => c.put(e.request, clone));
return res;
}).catch(() =>
caches.match(e.request)
.then(r => r || caches.match('index.html'))
.then(r => r || OFFLINE_RESPONSE)
)
);
} else if (isSwScript) {
e.respondWith(fetch(e.request).catch(() => OFFLINE_RESPONSE));
} else {
e.respondWith(
caches.match(e.request).then(r => r || fetch(e.request).then(res => {
const clone = res.clone();
caches.open(CACHE).then(c => c.put(e.request, clone));
return res;
}))
);
}
});