ServiceWorkerRegistrationOptions.md

ServiceWorkerRegistrationOptions

Namespace: SpawnDev.SpawnJS.JSObjects
Source: JSObjects/ServiceWorkerRegistrationOptions.cs
MDN Reference: ServiceWorkerRegistrationOptions on MDN

Options used when registering a ServiceWorker via ServiceWorkerContainer.Register() https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/register#options

Properties

Property	Type	Access	Description
ServiceWorkerRegistrationOptions	class	get	Options used when registering a ServiceWorker via ServiceWorkerContainer.Register() https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/register#options
Type	string?	get
UpdateViaCache	string?	get

Examples

SpawnDev.SpawnJS Mapping Note: The JavaScript examples below show the standard Web API usage. In SpawnDev.SpawnJS, the same API is available with C# conventions:

• Properties and methods use PascalCase (e.g., readyState becomes ReadyState)
• Events use ActionEvent with +=/-= (e.g., addEventListener("click", fn) becomes OnClick += handler)
• Async methods return Task<T> instead of Promise<T>
• Objects should be disposed with using statements
• Access via JS.Get<ServiceWorkerRegistrationOptions>(...) or constructor new ServiceWorkerRegistrationOptions(...)

Using TrustedScriptURL

if (typeof trustedTypes === "undefined")
  trustedTypes = { createPolicy: (n, rules) => rules };

Using TrustedScriptURL

const scriptAllowList = [
  // Some list of allowed URLs
];
const policy = trustedTypes.createPolicy("script-url-policy", {
  createScriptURL(input) {
    if (scriptAllowList.includes(input)) {
      return input; // allow the script
    }
    console.log(`Script not in scriptAllowList: ${input}`);
    return ""; // Block the script
  },
});

Using TrustedScriptURL

// The potentially malicious string
// We won't be including untrustedScript in our scriptAllowList array
const untrustedScript = "https://evil.example.com/service_worker.js";

// Create a TrustedScriptURL instance using the policy
const trustedScriptURL = policy.createScriptURL(untrustedScript);

See full example on MDN