Warning when checking for updates

[PyvesB]

Hello there! When I check for updates with an Eclipse installation with the GFM plugin, the following warning pops up in the Error Log view:

org.eclipse.equinox.p2.repository
Warning
Sat Nov 23 09:39:11 GMT 2019
Server returned lastModified <= 0 for https://raw.githubusercontent.com/satyagraha/gfm_viewer/master/p2-composite/compositeArtifacts.xml

The warning may also appear when other plugins are being installed (I'm guessing Equinox is resolving dependencies by searching through available update sites), so it can become quite noisy.

Let me know if you need any extra information. 😉