Connection errored out when accessing presignedURL

[aws-sssjwang]

Hey I have implemented your product on cloud. It can work well when access other public address. but when I make the request for presignedURL, which may have 4500 token, it would access the URL and then shows connection error, I checked the logs, it stuck at 302 return code. I tried to make the url shorter but still face same problem. called with bedrock api. Following is the relative logs.
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WARNING [browser] :warning: Headless mode is not recommended. Many sites will detect and block all headless browsers. WARNING [browser] :warning: Headless mode is not recommended. Many sites will detect and block all headless browsers. INFO [src.controller.custom_controller] :rocket: SIMPLIFIED SageMaker Navigation - Debug Version INFO [src.controller.custom_controller] :clipboard: Hardcoded parameters: DomainId=d-9cpchwz1nnno, UserProfile=adam-test-user-1752279282450, Space=adam-space-1752279293076 INFO [src.controller.custom_controller] :arrows_counterclockwise: AWS session attempt 1/3... INFO [botocore.credentials] Found credentials from IAM Role: eksctl-browser-use-deployment-clus-NodeInstanceRole-RM89zn6fxQxp INFO [src.controller.custom_controller] :white_check_mark: AWS session and SageMaker client created successfully INFO [src.controller.custom_controller] :arrows_counterclockwise: Presigned URL generation attempt 1/3... INFO [src.controller.custom_controller] :white_check_mark: Generated presigned URL successfully (length: 4519 chars) INFO [src.controller.custom_controller] :link: URL preview: https://nhk8sx2goysqdri.studio.us-east-1.sagemaker.aws/auth?token=eyJhbGciOiJIUzI1NiJ9.eyJzcGFjZU5hb... INFO [src.controller.custom_controller] :link: Creating short URL to avoid token consumption... INFO [src.controller.custom_controller] :straight_ruler: Original presigned URL length: 4519 chars 127.0.0.1 - - [06/Aug/2025 16:30:44] "POST /api/shorten HTTP/1.1" 200 - INFO [src.controller.custom_controller] :straight_ruler: Short URL length: 32 chars INFO [src.controller.custom_controller] :link: Short URL: http://127.0.0.1:8799/u/l4vq98T5 INFO [src.controller.custom_controller] :white_check_mark: Short URL creation successful - reduced from 4519 to 32 chars INFO [src.controller.custom_controller] :globe_with_meridians: Executing enhanced navigation to SageMaker Studio... INFO [src.controller.custom_controller] :arrows_counterclockwise: Starting navigation with short URL (5 minutes timeout)... 127.0.0.1 - - [06/Aug/2025 16:30:44] "GET /u/l4vq98T5 HTTP/1.1" 302 - INFO [src.controller.custom_controller] :white_check_mark: Initial navigation completed successfully INFO [src.controller.custom_controller] :hourglass_flowing_sand: Waiting for network to be completely idle... INFO [src.controller.custom_controller] :white_check_mark: Network idle state achieved INFO [src.controller.custom_controller] :mag: Verifying SageMaker Studio page content..