Add UTF-8 character encoding to JSP files

[Ratheshan03]

Purpose

Adds UTF-8 character encoding directives to JSP files that were missing them, ensuring proper unicode character handling across authentication and account management pages.

Description

JSP pages without explicit character encoding can have issues rendering unicode characters, especially for internationalization and localized content. This PR addresses this by adding the proper encoding directive to all JSP files that were missing it.

Changes Made

• Added <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> to 76 JSP files
• Directive placed after copyright headers and before any imports or code
• Excluded webpack template files that dynamically set encoding via htmlWebpackPlugin.options.contentType

Files Modified

Modified JSP files in:

• identity-apps-core/apps/accounts/src/main/webapp/includes/*.jsp (16 files)
• identity-apps-core/apps/authentication-portal/src/main/webapp/**/*.jsp (44 files)
• identity-apps-core/apps/recovery-portal/src/main/webapp/**/*.jsp (14 files)
• identity-apps-core/apps/x509-certificate-authentication-portal/src/main/webapp/includes/*.jsp (10 files)
• apps/console/src/auth.jsp (1 file)
• apps/myaccount/src/auth.jsp (1 file)

Related Issues

• Fixes Authentication Portal: Incomplete Language Rendering product-is#25744

Related PRs

• N/A

Checklist

• e2e cypress tests locally verified. (for internal contributers)
• Manual test round performed and verified.
• UX/UI review done on the final implementation.
• Documentation provided. (Add links if there are any)
• Relevant backend changes deployed and verified
• Unit tests provided. (Add links if there are any)
• Integration tests provided. (Add links if there are any)

Security checks

• Followed secure coding standards in http://wso2.com/technical-reports/wso2-secure-engineering-guidelines
• Ran FindSecurityBugs plugin and verified report
• Confirmed that this PR doesn't commit any keys, passwords, tokens, usernames, or other secrets

Developer Checklist (Mandatory)

• Complete the Developer Checklist in the related product-is issue to track any behavioral change or migration impact.

[brionmario]

Hey @Ratheshan03,

Thanks for the PR.

Can you please explain how you tested the changes?
Can we get some screenshots of a page on the Authentication Endpoint with the encoding tag you added visible on the browser DEv Tools?

[pavinduLakshan]

We don’t need to add this tag to every individual JSP file. Including it once in a reusable component within the /includes directory should automatically apply it to all pages that use that component.

[brionmario]

Hey @Ratheshan03,

Any update on the above comment: #9417 (comment)

[Ratheshan03]

Hi, @brionmario,

Sry, got into some other works.
I'll try to make the requested changes and verify it properly this weekend.

Thanks