Don't open the browser while webui is still installing. wait until the webui actually starts up.

ui/easydiffusion/app.py

@@ -319,11 +319,14 @@ def getIPConfig():
 
 
 def open_browser():
+    from easydiffusion.backend_manager import backend
+
     config = getConfig()
     ui = config.get("ui", {})
     net = config.get("net", {})
     port = net.get("listen_port", 9000)
 
+    if backend.is_installed():
         if ui.get("open_browser_on_start", True):
             import webbrowser
 
@@ -331,9 +334,6 @@ def open_browser():
 
             webbrowser.open(f"http://localhost:{port}")
 
-    from easydiffusion.backend_manager import backend
-
-    if backend.is_installed():
         Console().print(
             Panel(
                 "\n"

ui/easydiffusion/backends/webui/__init__.py

@@ -9,6 +9,7 @@ import shutil
 
 from easydiffusion.app import ROOT_DIR, getConfig
 from easydiffusion.model_manager import get_model_dirs
+from easydiffusion.utils import log
 
 from . import impl
 from .impl import (
@@ -100,6 +101,8 @@ def start_backend():
     if not os.path.exists(BACKEND_DIR):
         install_backend()
 
+    was_still_installing = not is_installed()
+
     if backend_config.get("auto_update", True):
         run_in_conda(["git", "add", "-A", "."], cwd=WEBUI_DIR)
         run_in_conda(["git", "stash"], cwd=WEBUI_DIR)
@@ -124,6 +127,17 @@ def start_backend():
         while True:
             try:
                 impl.ping(timeout=1)
+
+                if was_still_installing and not has_started:  # first start
+                    ui = config.get("ui", {})
+
+                    if ui.get("open_browser_on_start", True):
+                        import webbrowser
+
+                        log.info("Opening browser..")
+
+                        webbrowser.open(f"http://localhost:{port}")
+
                 has_started = True
             except (TimeoutError, ConnectionError):
                 if has_started:  # process probably died