The workbench failed to connect to the server (Error: WebSocket close with status code 1006)

[CoBool]

system

Ubuntu server 20.04 LTS
Apache2

config/code-server/config.yaml

bind-addr: IP:Port
auth: password
password: pass
cert: false

/etc/apache2/sites-available/code-server

<VirtualHost *:80>
ServerName URL

<IfModule mod_rewrite.c>
RewriteEngine on

RewriteRule ^ - [E=protossl]
RewriteCond %{HTTPS} on
RewriteRule ^ - [E=protossl:s]

RewriteCond %{HTTPS} !=on
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

</IfModule>

Specify the SSL cache directory. If possible, use shmcb, otherwise use the provided path.

SSLStaplingCache shmcb:/var/run/ocsp(128000)

<VirtualHost *:443>
ServerName code.URL

ErrorLog ${APACHE_LOG_DIR}/URL-error.log
CustomLog ${APACHE_LOG_DIR}/URL-access.log combined

Header always set Strict-Transport-Security "max-age=31536000"

SSLEngine on

SSLProtocol all -SSLv2 -SSLv3

SSLCipherSuite ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA

SSLHonorCipherOrder on
SSLCertificateFile "/etc/letsencrypt/live/URL/cert.pem"
SSLCertificateKeyFile "/etc/letsencrypt/live/URL/privkey.pem"
SSLCertificateChainFile "/etc/letsencrypt/live/URL/chain.pem"

# Turn on OCSP stapling
SSLUseStapling on
SSLStaplingResponderTimeout 5
SSLStaplingReturnResponderErrors off

RewriteEngine On
RewriteCond %{HTTP:Upgrade} =websocket [NC]
RewriteRule /(.*)           wss://ip:port/$1 [P,L]
RewriteCond %{HTTP:Upgrade} !=websocket [NC]
RewriteRule /(.*)           http://ip:port/$1 [P,L]

I set it like this, but I keep getting an error 1006.

sorry for my english

[cxw620]

Using CDN? Some CDN don't support websocket and I met with same problem, for I used qiniu dynamic CDN at first and it didn't support websocket. Later I make use of ECDN of Tencent CDN and it works. You can try to connect to code-server with ip:port directly, if problem still exists, code-server itself may be to blame and you can open an issue. If not, check your apache config refering to official docs.
I notice this SSLProtocol all -SSLv2 -SSLv3. Try to change it to SSLProtocol +TLSv1.2?

[CoBool]

I solved it by reinstalling version 3.14

I'll change it the way I told you next time!

thanks