Set MetaDataConstants.SECURE_PAGE to "true". Re-activate HTTPS in the…

… Dockerfile.

Hopefully, this helps with the issue that the clipboard could not be accessed in JavaScript. This only works on localhost or over a secured connection.
Https was deactivated for testing on localhost.

gepi/Dockerfile

@@ -39,5 +39,5 @@ FROM jetty:10.0.9-jre11-slim-openjdk as production
 USER root
 RUN apt-get update -y && apt-get install -y python3.9 && apt-get install -y python3-pip && pip install pandas==1.3.2 openpyxl==3.0.9 xlsxwriter==3.0.1
 USER jetty
-#RUN java -jar "$JETTY_HOME/start.jar" --add-modules=ssl,https
+RUN java -jar "$JETTY_HOME/start.jar" --add-modules=ssl,https
 COPY gepi-webapp/target/gepi-webapp.war /var/lib/jetty/webapps/ROOT.war

gepi/gepi-webapp/src/main/java/de/julielab/gepi/webapp/services/AppModule.java

@@ -7,6 +7,7 @@
 import de.julielab.gepi.webapp.state.GePiSessionState;
 import de.julielab.gepi.webapp.state.GePiSessionStateCreator;
 import org.apache.tapestry5.ComponentResources;
+import org.apache.tapestry5.MetaDataConstants;
 import org.apache.tapestry5.SymbolConstants;
 import org.apache.tapestry5.commons.MappedConfiguration;
 import org.apache.tapestry5.commons.OrderedConfiguration;
@@ -131,6 +132,10 @@ public static void scheduleJobs(ParallelExecutor pExecutor, PeriodicExecutor exe
         executor.addJob(new IntervalSchedule(Duration.ofDays(1).toMillis()), "Temp file deletion job", statisticsCollector);
     }
 
+    public void contributeMetaDataLocator(MappedConfiguration<String, String> configuration) {
+        configuration.add(MetaDataConstants.SECURE_PAGE, "true");
+    }
+
     /**
      * This is a service definition, the service will be named "TimingFilter". The interface,
      * RequestFilter, is used within the RequestHandler service pipeline, which is built from the