# CORS (Cross-Origin Resource Sharing)

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS or "Cross-Origin Resource Sharing"</a> refers to the situations when a frontend running in a browser has JavaScript code that communicates with a backend, and the backend is in a different "origin" than the frontend.

## Origin

)

# buildifier: disable=same-origin-load
load("@rules_python//python:repositories.bzl", "py_repositories")

py_repositories()

load("@rules_python//python:repositories.bzl", "python_register_multi_toolchains")  # buildifier: disable=same-origin-load
load("@rules_python//python/pip_install:repositories.bzl", "pip_install_dependencies")

    override val firSymbol: FirBackingFieldSymbol,
    override val analysisSession: KtFirAnalysisSession,
) : KtBackingFieldSymbol(), KtFirSymbol<FirBackingFieldSymbol> {
    override val origin: KtSymbolOrigin get() = withValidityAssertion { super<KtBackingFieldSymbol>.origin }

    override val annotationsList: KtAnnotationsList
        get() = withValidityAssertion {
            KtFirAnnotationListForDeclaration.create(firSymbol, builder)
        }

    strip_prefix = "rules_python-0.26.0",
    url = "https://github.com/bazelbuild/rules_python/releases/download/0.26.0/rules_python-0.26.0.tar.gz",
)

# buildifier: disable=same-origin-load
load("@rules_python//python:repositories.bzl", "py_repositories")

py_repositories()

## Load HERMETIC_PYTHON_VERSION variable
local_repository(
    name = "local_tensorflow",
    path = "../../..",
)

    override val returnType: KtType
        get() = withValidityAssertion { analysisContext.builtIns.unitType.toKtType(analysisContext) }

    override val origin: KtSymbolOrigin
        get() = withValidityAssertion { propertyDescriptor.getSymbolOrigin(analysisContext) }

    override val psi: PsiElement?
        get() = withValidityAssertion { null }

    override val psi: P
    val descriptor: D?

    override val annotationsObject: Annotations
        get() = withValidityAssertion { descriptor?.annotations ?: Annotations.EMPTY }

    override val origin: KtSymbolOrigin
        get() = withValidityAssertion { psi.ktSymbolOrigin }

}

internal fun KtAnalysisSession.getPsiDeclarations(symbol: KtFirSymbol<*>): Collection<PsiElement> {
    val intersectionOverriddenSymbolsOrSingle = when {
        symbol.origin == KtSymbolOrigin.INTERSECTION_OVERRIDE && symbol is KtCallableSymbol -> symbol.getIntersectionOverriddenSymbols()
        else -> listOf(symbol)
    }

import java.util.Objects
import javax.net.SocketFactory
import javax.net.ssl.HostnameVerifier
import javax.net.ssl.SSLSocketFactory
import okhttp3.internal.toImmutableList

/**
 * A specification for a connection to an origin server. For simple connections, this is the
 * server's hostname and port. If an explicit proxy is requested (or [no proxy][Proxy.NO_PROXY] is

        fun getSamConstructor(firClass: FirRegularClass): FirSimpleFunction? {
            val samConstructor = bodyResolveComponents.samResolver.getSamConstructor(firClass) ?: return null
            if (samConstructor.origin != FirDeclarationOrigin.SamConstructor) return null
            return samConstructor
        }
    }

```
curl http://minio1:9001/minio/health/cluster
HTTP/1.1 503 Service Unavailable
Accept-Ranges: bytes
Content-Length: 0
Server: MinIO
Vary: Origin
X-Amz-Bucket-Region: us-east-1
X-Minio-Write-Quorum: 3
X-Amz-Request-Id: 16239D6AB80EBECF
X-Xss-Protection: 1; mode=block
Date: Tue, 21 Jul 2020 00:36:14 GMT
```

### Cluster-readable probe