try syncing it

src/main/java/net/montoyo/wd/client/ClientProxy.java

@@ -132,12 +132,12 @@ public class ClientProxy extends SharedProxy implements IDisplayHandler, IJSQuer
     @SubscribeEvent
     public static void onClientSetup(FMLClientSetupEvent event) {
         BlockEntityRenderers.register(TileInit.SCREEN_BLOCK_ENTITY.get(), new ScreenRenderer.ScreenRendererProvider());
+        registerBlockRenderLayers(RenderType.cutout(), BlockInit.blockKeyBoard.get(), BlockInit.blockKbRight.get());
     }
 
     @SubscribeEvent
     public static void onModelRegistryEvent(ModelEvent.RegisterGeometryLoaders event) {
         event.register(ScreenModelLoader.SCREEN_LOADER.getPath(), new ScreenModelLoader());
-        registerBlockRenderLayers(RenderType.cutout(), BlockInit.blockKeyBoard.get(), BlockInit.blockKbRight.get());
     }
 
     private static void registerBlockRenderLayers(RenderType layer, Block... blocks) {

src/main/java/net/montoyo/wd/client/gui/GuiSetURL2.java

@@ -25,6 +25,7 @@ import net.montoyo.wd.utilities.BlockSide;
 import net.montoyo.wd.utilities.Util;
 import net.montoyo.wd.utilities.Vector3i;
 
+import java.io.IOException;
 import java.util.Map;
 
 @Mod.EventBusSubscriber(Dist.CLIENT)
@@ -101,6 +102,13 @@ public class GuiSetURL2 extends WDScreen {
 
     private void validate(String url) {
         if(!url.isEmpty()) {
+
+            try {
+                TileEntityScreen.url(url);
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+
             url = Util.addProtocol(url);
             url = ((ClientProxy) WebDisplays.PROXY).getMCEF().punycode(url);
 

src/main/java/net/montoyo/wd/client/renderers/ScreenRenderer.java

@@ -20,6 +20,8 @@ import net.montoyo.wd.utilities.Vector3f;
 import net.montoyo.wd.utilities.Vector3i;
 import org.jetbrains.annotations.NotNull;
 
+import java.io.IOException;
+
 import static com.mojang.math.Vector3f.*;
 import static org.lwjgl.opengl.GL11.*;
 

src/main/java/net/montoyo/wd/entity/TileEntityInterfaceBase.java

@@ -17,6 +17,7 @@ import net.montoyo.wd.net.client.CMessageScreenUpdate;
 import net.montoyo.wd.utilities.*;
 
 import javax.annotation.Nonnull;
+import java.io.IOException;
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -336,7 +337,11 @@ public abstract class TileEntityInterfaceBase extends TileEntityPeripheralBase {
         else if((scr.getScreen(screenSide).rightsFor(owner.uuid) & ScreenRights.CHANGE_URL) == 0)
             return err("restrictions");
         else {
+            try {
                 scr.setScreenURL(screenSide, url);
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
             return TRUE;
         }
     }

src/main/java/net/montoyo/wd/entity/TileEntityRedCtrl.java

@@ -22,6 +22,7 @@ import net.montoyo.wd.utilities.BlockSide;
 import net.montoyo.wd.utilities.Util;
 
 import javax.annotation.Nonnull;
+import java.io.IOException;
 
 public class TileEntityRedCtrl extends TileEntityPeripheralBase {
 
@@ -116,7 +117,11 @@ public class TileEntityRedCtrl extends TileEntityPeripheralBase {
             TileEntityScreen tes = getConnectedScreen();
 
             if (tes != null)
+                try {
                     tes.setScreenURL(screenSide, url);
+                } catch (IOException e) {
+                    throw new RuntimeException(e);
+                }
         }
     }
 }

src/main/java/net/montoyo/wd/entity/TileEntityScreen.java

@@ -8,6 +8,7 @@ import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.ListTag;
+import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.sounds.SoundEvent;
 import net.minecraft.sounds.SoundSource;
@@ -42,6 +43,8 @@ import net.montoyo.wd.utilities.*;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
+import java.io.IOException;
+import java.net.*;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.UUID;
@@ -198,7 +201,6 @@ public class TileEntityScreen extends BlockEntity{
         }
 
 
-
         public void clampResolution() {
             if (resolution.x > WebDisplays.INSTANCE.maxResX) {
                 float newY = ((float) resolution.y) * ((float) WebDisplays.INSTANCE.maxResX) / ((float) resolution.x);
@@ -367,24 +369,43 @@ public class TileEntityScreen extends BlockEntity{
             Messages.INSTANCE.send(PacketDistributor.PLAYER.with(() -> ep), new CMessageAddScreen(this));
     }
 
-    public void setScreenURL(BlockSide side, String url) {
+    public static String url(String url) throws IOException {
+
+        MinecraftServer server = WebDisplays.PROXY.getServer();
+        System.setProperty("http.proxyHost", server.getLocalIp());
+        System.setProperty("http.proxyPort", String.valueOf(server.getPort()));
+        Proxy webProxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(InetAddress.getByName(server.getLocalIp()), server.getPort()));
+
+        URL weburl1 = new URL(url);
+
+        HttpURLConnection webProxyConnection = (HttpURLConnection) weburl1.openConnection(webProxy);
+
+        return webProxyConnection.getURL().toString();
+    }
+
+    public void setScreenURL(BlockSide side, String url) throws IOException {
         Screen scr = getScreen(side);
         if (scr == null) {
             Log.error("Attempt to change URL of non-existing screen on side %s", side.toString());
             return;
         }
 
-        url = WebDisplays.applyBlacklist(url);
+        String weburl = url(url);
-        scr.url = url;
+
-        scr.videoType = VideoType.getTypeFromURL(url);
+        weburl = WebDisplays.applyBlacklist(weburl);
+        scr.url = weburl;
+        scr.videoType = VideoType.getTypeFromURL(weburl);
 
         if (level.isClientSide) {
             if (scr.browser != null)
-                scr.browser.loadURL(url);
+                scr.browser.loadURL(weburl);
         } else {
-            Messages.INSTANCE.send(PacketDistributor.NEAR.with(() -> point(level, getBlockPos())), CMessageScreenUpdate.setURL(this, side, url));
+            Messages.INSTANCE.send(PacketDistributor.NEAR.with(() -> point(level, getBlockPos())), CMessageScreenUpdate.setURL(this, side, weburl));
             setChanged();
         }
+
+        System.setProperty("http.proxyHost", null);
+        System.setProperty("http.proxyPort", null);
     }
 
     public void removeScreen(BlockSide side) {
@@ -786,8 +807,10 @@ public class TileEntityScreen extends BlockEntity{
 
                         for (TypeData ev : data) {
                             switch (ev.getAction()) {
-                                case PRESS -> scr.browser.injectKeyPressedByKeyCode(ev.getKeyCode(), (char) ev.getKeyCode(), ev.getModifier());
+                                case PRESS ->
-                                case RELEASE -> scr.browser.injectKeyReleasedByKeyCode(ev.getKeyCode(), (char) ev.getKeyCode(), ev.getModifier());
+                                        scr.browser.injectKeyPressedByKeyCode(ev.getKeyCode(), (char) ev.getKeyCode(), ev.getModifier());
+                                case RELEASE ->
+                                        scr.browser.injectKeyReleasedByKeyCode(ev.getKeyCode(), (char) ev.getKeyCode(), ev.getModifier());
                                 case TYPE -> scr.browser.injectKeyTyped(ev.getKeyCode(), ev.getModifier());
                                 default -> throw new RuntimeException("Invalid type action '" + ev.getAction() + '\'');
                             }

src/main/java/net/montoyo/wd/net/client/CMessageAddScreen.java

@@ -13,6 +13,7 @@ import net.montoyo.wd.WebDisplays;
 import net.montoyo.wd.entity.TileEntityScreen;
 import net.montoyo.wd.utilities.*;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.function.Supplier;
 
@@ -104,12 +105,20 @@ public class CMessageAddScreen {
             for (TileEntityScreen.Screen entry : screens) {
                 TileEntityScreen.Screen scr = tes.addScreen(entry.side, entry.size, entry.resolution, null, false);
                 scr.rotation = entry.rotation;
-                scr.url = entry.url;
+                String webUrl;
+
+                try {
+                    webUrl = TileEntityScreen.url(entry.url);
+                } catch (IOException e) {
+                    throw new RuntimeException(e);
+                }
+
+                scr.url = webUrl;
                 scr.owner = entry.owner;
                 scr.upgrades = entry.upgrades;
 
                 if (scr.browser != null)
-                    scr.browser.loadURL(entry.url);
+                    scr.browser.loadURL(webUrl);
             }
 
         });

src/main/java/net/montoyo/wd/net/client/CMessageScreenUpdate.java

@@ -17,6 +17,7 @@ import net.montoyo.wd.init.BlockInit;
 import net.montoyo.wd.utilities.*;
 
 import javax.annotation.Nullable;
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.function.Supplier;
 
@@ -252,7 +253,13 @@ public class CMessageScreenUpdate {
             TileEntityScreen tes = (TileEntityScreen) te;
     
                 switch (action) {
-                    case UPDATE_URL -> tes.setScreenURL(side, string);
+                    case UPDATE_URL -> {
+                        try {
+                            tes.setScreenURL(side, string);
+                        } catch (IOException e) {
+                            throw new RuntimeException(e);
+                        }
+                    }
                     case UPDATE_MOUSE -> tes.handleMouseEvent(side, mouseEvent, vec2i);
                     case UPDATE_DELETE -> tes.removeScreen(side);
                     case UPDATE_RESOLUTION -> tes.setResolution(side, vec2i);

src/main/java/net/montoyo/wd/net/server/SMessageScreenCtrl.java

@@ -24,6 +24,7 @@ import net.montoyo.wd.init.BlockInit;
 import net.montoyo.wd.init.ItemInit;
 import net.montoyo.wd.utilities.*;
 
+import java.io.IOException;
 import java.util.function.Supplier;
 
 public class SMessageScreenCtrl implements Runnable {
@@ -309,7 +310,11 @@ public class SMessageScreenCtrl implements Runnable {
 
         if(ctrl == CTRL_SET_URL || ctrl == CTRL_SET_URL_REMOTE) {
             checkPermission(tes, ScreenRights.CHANGE_URL);
+            try {
                 tes.setScreenURL(side, url);
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
         } else if(ctrl == CTRL_SHUT_DOWN) {
             //TODO
             //checkPermission(tes, ScreenRights.CHANGE_URL);