Fail to load web page when start api and web in Devcontainer

[Menghua1]

Describe the issue:
After running Run Task -> Start Web and Api, click the web link http://localhost:5173/ output in the terminal, and the page cannot be loaded, as shown below:

Repro Steps:

1. Login in with command: azd auth login.
2. Run command azd init -t <template> -b staging.
3. Run command azd up.
4. Run task: start api and web.
5. Click the web url output in the terminal.

Environment:

• Template: todo-csharp-cosmos-sql, todo-nodejs-mongo-swa-func, todo-java-mongo, todo-java-postgresql-terraform.
• Branch: staging
• OS: Devcontainer
• Azd version: azd version 1.11.0-beta.1-pr.4140256 (commit b6402de) and azd version 1.11.0-beta.1-daily.4152592 (commit e2ff8ba)

Expected behavior:
When start api and web, the web page can load successfully.

@jongio for notification.

[Menghua1]

@jongio This issue can also be reproduced in main. We tested the following four scenarios and they can all be reproduced:

• Template: todo-csharp-cosmos-sql, todo-nodejs-mongo-swa-func, todo-java-mongo, todo-java-postgresql-terraform.
• OS: Devcontainer
• Test Scenario:

1. Templates under the main branch + azd version 1.11.0-beta.1-daily.4152592 (commit e2ff8ba).
2. Templates under the main branch + azd version 1.11.0-beta.1-pr.4140256 (commit b6402de).
3. Templates under the staging branch + azd version 1.11.0-beta.1-daily.4152592 (commit e2ff8ba).
4. Templates under the staging branch + azd version 1.11.0-beta.1-pr.4140256 (commit b6402de).