[Python] Can't load TileLayer from local file in web mode

I have own raster tiles created from QGIS. They are okey, and work on windows app mode by starting python server at http://localhost:8000 and attribute looks like this url_template="http://localhost:8000/{z}/{x}/{y}.jpg",, but this solution doesn't work at web mode and i am putting my script on github pages. It will be perfect to use local path like in leafmap "./{z}/{x}/{y}.jpg", but this also not working.

This is my Map config for flet map:

main_map = map.Map(
expand=True,
initial_center=map.MapLatitudeLongitude(50.965125,18.286120),
initial_zoom=12,
interaction_configuration=map.MapInteractionConfiguration(
flags=map.MapInteractiveFlag.ALL
),
on_init=lambda e: print(f"Initialized Map"),
on_tap=handle_tap,
on_secondary_tap=handle_tap,
on_long_press=handle_tap,
on_event=lambda e: print(e),
layers=[
map.TileLayer(
url_template="https://tile.openstreetmap.org/{z}/{x}/{y}.png",
# url_template="./{z}/{x}/{y}.jpg", <-- I wanna something like this
# url_template="http://localhost:8000/{z}/{x}/{y}.jpg",
on_image_error=lambda e: print("TileLayer Error"),
),
map.RichAttribution(
attributions=[
map.TextSourceAttribution(
text="OpenStreetMap Contributors",
on_click=lambda e: e.page.launch_url(
"https://openstreetmap.org/copyright"
),
),
map.TextSourceAttribution(
text="Flet",
on_click=lambda e: e.page.launch_url("https://flet.dev"),
),
]
),
map.SimpleAttribution(
text="Flet",
alignment=ft.alignment.top_right,
on_click=lambda e: print("Clicked SimpleAttribution"),
),
map.MarkerLayer(
ref=marker_layer_ref,
markers=[
map.Marker(
content=ft.Icon(ft.Icons.LOCATION_ON),
coordinates=map.MapLatitudeLongitude(50.965125,18.286120),
),
map.Marker(
content=ft.Icon(ft.Icons.LOCATION_ON),
coordinates=map.MapLatitudeLongitude(10, 10),
),
map.Marker(
content=ft.Icon(ft.Icons.LOCATION_ON),
coordinates=map.MapLatitudeLongitude(25, 45),
),
],
),
map.CircleLayer(
ref=circle_layer_ref,
circles=[
map.CircleMarker(
radius=10,
coordinates=map.MapLatitudeLongitude(50.965125,18.306120),
color=ft.Colors.RED,
border_color=ft.Colors.BLUE,
border_stroke_width=4,
),
],
),
map.PolygonLayer(
polygons=[
map.PolygonMarker(
label="Popular Touristic Area",
label_text_style=ft.TextStyle(
color=ft.Colors.BLACK,
size=15,
weight=ft.FontWeight.BOLD,
),
color=ft.Colors.with_opacity(0.3, ft.Colors.BLUE),
coordinates=[
map.MapLatitudeLongitude(10, 10),
map.MapLatitudeLongitude(30, 15),
map.MapLatitudeLongitude(25, 45),
],
),
],
),
map.PolylineLayer(
polylines=[
map.PolylineMarker(
border_stroke_width=3,
border_color=ft.Colors.RED,
gradient_colors=[ft.Colors.BLACK, ft.Colors.BLACK],
color=ft.Colors.with_opacity(0.6, ft.Colors.GREEN),
coordinates=[
map.MapLatitudeLongitude(10, 10),
map.MapLatitudeLongitude(30, 15),
map.MapLatitudeLongitude(25, 45),
],
),
],
),
],
)


Full srcipt and example tiles (assets folder) is in this github project and there are deploy page

That's how it look with OSM TiledLayer



That's i wanna to look on web, this is from exe mode for flet app



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