clasp login return offline

[puentesdiaz]

After install clasp via npm over corporate proxy, i have no problem
i can run : clasp -v ..fine...
but ...

Steps to Reproduce the Problem

1. clasp login

Error: Looks like you are offline.

Specifications

• Node version (node -v): 10.10.0
• Version (clasp -v): 1.5.3
• OS :Windows

[grant]

I'll have to make the internet check optional.
Can you try:
clasp login --no-localhost

[puentesdiaz]

clasp login --no-localhost

I'll have to make the internet check optional.
Can you try:
clasp login --no-localhost

Yes i can, but throw same error

[grant]

OK, I'll fix this issue.

Remove this line:
https://github.com/google/clasp/blob/master/src/auth.ts#L165

[aakasaka]

I have the same problem with login under the proxy.
When I comment out the lines using is-online , the message "Looks like you are offline" disappeared and my browser open google auth page, but error showed in console and login failed.

Error retrieving access token: Error: write EPROTO 19024:error:1408F10B:SSL routines:ssl3_get_record:wrong version number:openssl\ssl\record\ssl3_record.c:252:

Is that a same problem with #8 ?

[grant]

I think this is fixed with the proxy support referenced above.
We skip checking is-offline when there's a proxy.

[thedrs]

I solved this issue - here is the story:

I am on windows in a very restricted corporate enterprise which has to use an http and https proxy.
We do have normal google services accessible in the browser.
Obviously 'clasp login' does not work without a proxy, it gives:
Error retrieving access token: FetchError: request to https://oauth2.googleapis.com/token failed, reason: connect ETIMEDOUT 216.58.212.202:443
(It does work if i disconnect my computer from corporate and connect to public internet)

So i defined these two env variables in cmd (you can also do it in git bash console, just replace "set" with "export"):
set HTTP_PROXY=http://proxy.mycompany.com:80
set HTTPS_PROXY=https://proxy.mycompany.com:80
(our corporate proxy uses port 80 for both http and https !)

this is the error i got:
Error retrieving access token: FetchError: request to https://oauth2.googleapis.com/token failed, reason: write EPROTO EC110000:error:0A00010B:SSL routines:ssl3_get_record:wrong version number:c:\ws\deps\openssl\openssl\ssl\record\ssl3_record.c:355:

The solution to my problem was that our https proxy used an http address, so i fixed the set to the following :
set HTTPS_PROXY=http://proxy.mycompany.com:80
(note the http:// and not https:// on the right hand side)

Hope i helped others here too