Get rid of unsafe-eval in the CSP header

I am facing an issue with my old JavaScript code as it is using unsafe-eval. The client has requested to remove unsafe-eval, but the code relies on the eval method in all JavaScript libraries. Removing unsafe-eval breaks the functionality of the code. How can I eliminate unsafe-eval without modifying the library code?

Which version should I use to avoid getting a nonce error? Currently, I am using version 2.0.2 and encountering the following error: https://i.sstatic.net/VYwfB.png

zone.min.js?_=1686053845269:1 Uncaught EvalError: Refused to evaluate a string as JavaScript because 'unsafe-eval' is not allowed in the Content Security Policy directive: "script-src 'self' 'nonce-/jHqQHDI76+2UJhy0y0afg=='".

at new Function (<anonymous>)
at evalExpression (compiler.umd.min.js?_=1686053845269:6:1473)
at jitStatements (compiler.umd.min.js?_=1686053845269:21:30062)
at RuntimeCompiler._compileModule (compiler.umd.min.js?_=1686053845269:41:18413)
at RuntimeCompiler._compileModuleAndComponents (compiler.umd.min.js?_=1686053845269:41:16590)
at RuntimeCompiler.compileModuleAsync (compiler.umd.min.js?_=1686053845269:41:16063)
at PlatformRef_._bootstrapModuleWithZone (core.umd.min.js?_=1686053845269:35:26523)
at PlatformRef_.bootstrapModule (core.umd.min.js?_=1686053845269:35:25813)
at Object.initAngularComponents (consentRegistry.js?_=1686053845270:415:47)
at Object.init (consentRegistry.js?_=1686053845270:63:22)
javascript

Answer №1

Consider the following:

  1. The client's requirement is to prohibit the use of unsafe-eval
  2. You possess a library that requires allowing unsafe-eval
  3. Modifying the source code of the library is not an option

To adhere to all conditions, the best course of action is to discard the library and rework any dependent code.

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