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https://issues.apache.org/jira/browse/GUACAMOLE-226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Jumper resolved GUACAMOLE-226.
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Resolution: Fixed
> Screen sharing for SSH broken by GUACAMOLE-176
> ----------------------------------------------
>
> Key: GUACAMOLE-226
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-226
> Project: Guacamole
> Issue Type: Bug
> Components: guacamole-server
> Affects Versions: 0.9.12-incubating
> Reporter: Michael Jumper
> Assignee: Michael Jumper
> Priority: Blocker
> Fix For: 0.9.12-incubating
>
>
> GUACAMOLE-176 added support for layer opacity to the {{guac_common_surface}}
> object. Although layers always default to opaque, the {{opacity}} property of
> {{guac_common_surface}} is not properly initialized to fully-opaque (0xFF).
> Layer opacity is not sent to the original user of a connection unless it
> changes, so the original user is unaffected, but any users which _join_ a
> shared connection will be synced with display state, including the incorrect
> opacity. For VNC and RDP, only the default layer is used and this bug has no
> effect, but SSH (and telnet) use multiple layers.
> Bad commit identified by git bisect:
> [6bd19b6|https://github.com/apache/incubator-guacamole-server/commit/6bd19b6ac68f0066cbaeee33de27a2a01fbd6e56]
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