根源就是js和ccs文件访问路由的问题，首先你要有本地的文件，详情看https://qq742971636.blog.csdn.net/article/details/134587010。

其次，你需要这么写：

/unicontorlblip就是我配置的mLB网关路由。

app = FastAPI(
    title='outpainting_captioning_upscaler',
    description='outpainting images, captioning images,upscaler images',
    version='1.0.0',
    docs_url=None,
    redoc_url=None,  # 设置 ReDoc 文档的路径

)
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)
app.mount("/static", StaticFiles(directory="static"), name="static")


@app.get("/docs", include_in_schema=False)
async def custom_swagger_ui_html():
    return get_swagger_ui_html(
        openapi_url="/unicontorlblip/openapi.json",
        title="xx",
        # oauth2_redirect_url=app.swagger_ui_oauth2_redirect_url,
        swagger_js_url='/unicontorlblip/static/swagger/swagger-ui-bundle.js',
        swagger_css_url='/unicontorlblip/static/swagger/swagger-ui.css',
        swagger_favicon_url='/unicontorlblip/static/swagger/img.png',
    )