fix: use a static object as fallback of the global object

[Means88]

I'm working on Mini Program (in WeChat etc.), which is not a Node environment nor standard browser environment.

console.log('window', typeof window) // undefined
console.log('process', typeof process) //undefined
console.log('global', typeof global) // object

The getGlobalObject function returns a new object every time when it is called, so that getMainCarrier and getCurrentHub return a new instance every time and remain uninitialized.

sentry-javascript/packages/hub/src/hub.ts

Lines 299 to 305 in da7a115

	export function getMainCarrier(): Carrier {
	const carrier: any = getGlobalObject();
	carrier.__SENTRY__ = carrier.__SENTRY__ || {
	hub: undefined,
	};
	return carrier;
	}

sentry-javascript/packages/hub/src/hub.ts

Lines 326 to 333 in da7a115

	export function getCurrentHub(): Hub {
	// Get main carrier (global for every environment)
	const registry = getMainCarrier();
	// If there's no hub, or its an old API, assign a new one
	if (!hasHubOnCarrier(registry) || getHubFromCarrier(registry).isOlderThan(API_VERSION)) {
	setHubOnCarrier(registry, new Hub());
	}

Exceptions will not be sent to server because client is not installed on the "current hub".

[kamilogorek]

Makes perfect sense. Thanks!