Add caching directives for /iframe/table/ and /iframe/chart/ (#3829)

Partial #3827

server/jetty/src/main/java/io/deephaven/server/jetty/JettyBackedGrpcServer.java

@@ -62,6 +62,7 @@
 import java.util.Collection;
 import java.util.EnumSet;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.TimeUnit;
@@ -95,11 +96,12 @@ public JettyBackedGrpcServer(
  }
  context.setInitParameter(DefaultServlet.CONTEXT_INIT + "dirAllowed", "false");
 
- // For the Web UI, cache everything in the static folder
- // https://create-react-app.dev/docs/production-build/#static-file-caching
- context.addFilter(NoCacheFilter.class, "/ide/*", EnumSet.noneOf(DispatcherType.class));
+ // Cache all of the appropriate assets folders
+ for (String appRoot : List.of("/ide/", "/iframe/table/", "/iframe/chart/")) {
+ context.addFilter(NoCacheFilter.class, appRoot + "*", EnumSet.noneOf(DispatcherType.class));
+ context.addFilter(CacheFilter.class, appRoot + "assets/*", EnumSet.noneOf(DispatcherType.class));
+ }
  context.addFilter(NoCacheFilter.class, "/jsapi/*", EnumSet.noneOf(DispatcherType.class));
- context.addFilter(CacheFilter.class, "/ide/assets/*", EnumSet.noneOf(DispatcherType.class));
  context.addFilter(DropIfModifiedSinceHeader.class, "/*", EnumSet.noneOf(DispatcherType.class));
 
  context.setSecurityHandler(new ConstraintSecurityHandler());