Bangle Emulator

Mon 2021.08.09

FIO: I am able to duplicate the issue using Fn+F5 within the stand alone emulator window.

Steps:
https://www.espruino.com/ide/
Orange Connect Button :: Emulator
Carret inside Emulator Window
Fn+F5

post #24 'Do you see any errors in the Chrome dev console?'

Yes

index.js:93405 GET https://www.espruino.com/serial/ports 404 (Not Found)
(anonymous) @ index.js:93405
cb @ index.js:92877
getGitHub @ index.js:101341
cb @ index.js:92875
callProcessor @ index.js:92880
getURL @ index.js:93383
getJSONURL @ index.js:93468
getPorts @ index.js:96520
(anonymous) @ index.js:95156
getPorts @ index.js:95154
getPorts @ index.js:99411
showPortSelector @ index.js:99462
toggleConnection @ index.js:99385
index.js:92937 getURL("/serial/ports") error : HTTP 404
console.error @ index.js:92937
(anonymous) @ index.js:93396
load (async)
(anonymous) @ index.js:93392
cb @ index.js:92877
getGitHub @ index.js:101341
cb @ index.js:92875
callProcessor @ index.js:92880
getURL @ index.js:93383
getJSONURL @ index.js:93468
getPorts @ index.js:96520
(anonymous) @ index.js:95156
getPorts @ index.js:95154
getPorts @ index.js:99411
showPortSelector @ index.js:99462
toggleConnection @ index.js:99385
VM3 serviceworker.js:1 Uncaught (in promise) TypeError: Failed to execute 'Cache' on 'addAll': Request failed
VM3 serviceworker.js:1 Uncaught (in promise) TypeError: Failed to execute 'Cache' on 'addAll': Request failed
serviceworker.js:1 Uncaught (in promise) TypeError: Failed to execute 'Cache' on 'addAll': Request failed
serviceworker.js:1 Uncaught (in promise) TypeError: Failed to execute 'Cache' on 'addAll': Request failed

To recover have to disconnect and re-connect to Emulator

Same steps but refreshing just the main page and not emulator window

serviceworker.js:1 Uncaught (in promise) TypeError: Failed to fetch
analytics.js:39 POST https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j92&tid=UA-46537227-2&cid=1087963641.1561050839&jid=1010657704&gjid=365500369&_gid=57781162.1628450740&_u=AACCAEAAAAAAAC~&z=2076022948 net::ERR_FAILED
wd @ analytics.js:39
pe @ analytics.js:38
oc @ analytics.js:39
Ea @ analytics.js:39
g.onreadystatechange @ analytics.js:38
XMLHttpRequest.send (async)
wd @ analytics.js:39
pe @ analytics.js:38
Sa @ analytics.js:43
Ha.D @ analytics.js:41
pc.send @ analytics.js:76
X.b.<computed> @ analytics.js:56
Z.v @ analytics.js:92
Z.D @ analytics.js:91
N.N @ analytics.js:94
rc @ analytics.js:86
z @ analytics.js:86
(anonymous) @ analytics.js:94
(anonymous) @ analytics.js:94
serviceworker.js:1 Uncaught (in promise) TypeError: Failed to execute 'Cache' on 'addAll': Request failed
serviceworker.js:1 Uncaught (in promise) TypeError: Failed to execute 'Cache' on 'addAll': Request failed

Also running Windows10 Chrome Version 92.0.4515.131