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Apache 服务器被配置为 Glassfish 服务器的代理。在 Glassfish 服务器上部署了 Vaadin 应用程序。应用程序加载失败并出现 CSS。Apache 配置或 Glassfish 应用程序/配置有问题吗？

该系统使用 Apache 2.4 和 Glassfish 5 进行配置。该应用程序使用 Vaadin 6.8 构建，Glassfih 已经配置了 ajp 连接器。

虚拟主机配置：

<VirtualHost *:443>
...
  SSLEngine on
  SSLCipherSuite HIGH:MEDIUM:!SSLv3:!kRSA
  SSLProtocol All -SSLv3
  SSLHonorCipherOrder On
  SSLCompression off
  SSLCertificateFile /etc/ssl/private/cert.pem
  SSLCertificateKeyFile /etc/ssl/private/privkey.pem
  SSLCertificateChainFile /etc/ssl/private/ca-crt.pem
<IfModule setenvif_module>
  BrowserMatch ".*MSIE.*" nokeepalive ssl-unclean-shutdown downgrade-1.0 force-response-1.0
</IfModule>
...
<IfModule rewrite_module>
    RewriteEngine On
#    LogLevel alert rewrite:trace3
    RewriteRule ^/api/(.*)$ /api/$1 [NC,PT]
    RewriteRule ^/myapp$ /myapp [NC,PT]
    RewriteRule ^/myapp/(.*)$ /myapp/$1 [NC,PT]
    RewriteRule ^(.*) /office [PT,L]
</IfModule>
...
<IfModule proxy_module>
   <Proxy *>
     AddDefaultCharset Off
     Order deny,allow
     Allow from all
   </Proxy>

<IfModule proxy_ajp_module>
  ProxyPass /myapp ajp://localhost:8009/myapp timeout=60
</IfModule>
</IfModule>
</VirtualHost>

Apache error_log 显示以下错误：

[Fri Aug 16 22:08:18.228731 2019] [proxy_ajp:error] [pid 3629:tid 140277591308032] (70014)End of file found: AH01030: ajp_ilink_receive() can't receive header
[Fri Aug 16 22:08:18.228764 2019] [proxy_ajp:error] [pid 3629:tid 140277591308032] [client 192.168.34.1:50484] AH00992: ajp_read_header: ajp_ilink_receive failed, referer: https://mydom.com/office/VAADIN/themes/reindeermods/styles.css
[Fri Aug 16 22:08:18.228776 2019] [proxy_ajp:error] [pid 3629:tid 140277591308032] (120006)APR does not understand this error code: [client 192.168.34.1:50484] AH00893: dialog to [::1]:8009 (app.ti-mm.com) failed, referer: https://mydom.com/office/VAADIN/themes/reindeermods/styles.css

并且应用程序显示一条消息，它无法加载 javascript 资源（js.nocache Vaadin artefact）。

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