Invalid or unexpected token

[lowlyocean]

When using debug-level logging, nodered reports the following while trying to initialize Alexa. I'm not sure how to trace the "Invalid or unexpected token" error to a specific callstack:

[info] [alexa-remote-account:c969cb45.22f3d8] intialising with the PROXY method and NO saved data...
[debug] [alexa-remote-account:c969cb45.22f3d8] Alexa-Remote: starting initialisation:
[debug] [alexa-remote-account:c969cb45.22f3d8] Alexa-Remote: {"authMethod":"proxy","initType":"proxy"}
[debug] [alexa-remote-account:c969cb45.22f3d8] Alexa-Remote: Use as User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36
[debug] [alexa-remote-account:c969cb45.22f3d8] Alexa-Remote: Use as Login-Amazon-URL: amazon.com
[debug] [alexa-remote-account:c969cb45.22f3d8] Alexa-Remote: Use as Base-URL: pitangui.amazon.com
[debug] [alexa-remote-account:c969cb45.22f3d8] Alexa-Remote: No cookie given, generate one
[error] [alexa-remote-account:c969cb45.22f3d8] Invalid or unexpected token

Node-RED version: v2.0.5
Node.js version: v14.17.5
Linux 5.10.17-v7+ arm LE

"node-red-contrib-alexa-remote2-applestrudel": {
"version": "5.0.2",

"alexa-remote2": {
"version": "3.9.0",

"alexa-cookie2": {
"version": "3.4.3",

[bbindreiter]

Just to make sure: Have you fetched a token and saved it in the cookie-file?

[lowlyocean]

I've got the Account configured as such, and the file .node-red/alexa_auth is populated (probably with stale values):

[bbindreiter]

Try host layla.amazon.de and page amazon.de. Language can stay.

[lowlyocean]

Thank you, unfortunately it produces the same result

[lowlyocean]

If I try to use Auth Method "Cookie", there doesn't seem to be an issue. But as I understand, only the Proxy method would periodically refresh the cookie as needed (and that with the Cookie method, I need to go in and update it manually once in a while).

[lowlyocean]

I was able to trace the callstack but not to the line that creates the message "Invalid or unexpected token" (maybe because of nodejs/node#11865?)

Trace: Invalid or unexpected token
    at nodeError (/var/www/.node-red/node_modules/node-red-contrib-alexa-remote2-applestrudel/lib/common.js:371:17)
    at /var/www/.node-red/node_modules/node-red-contrib-alexa-remote2-applestrudel/lib/common.js:396:27
    at processTicksAndRejections (internal/process/task_queues.js:95:5)

[lowlyocean]

I was able to figure this out, my investigation is documented here. It turns out my copy of npm package core-util-is had become corrupted and needed a reinstall.