Fix threading issue with external links in HTML5 contexts #5078
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- Mention the threading requirements in the docs - Check that the browse action is supported before we try to use it - Avoid needlessly reparsing the URI
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Identify the Bug or Feature request
Fixes #5077
Description of the Change
The click handler for HTML5 links now calls
MapTool.showDocument()on the swing thread to avoid conflicts with the JFX thread where the handler runs.We also now check that the browse action is supported by the
Desktopbefore entering the associated code branch.Possible Drawbacks
None
Documentation Notes
N/A
Release Notes
This change is