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node_modules/helmet-csp/dist/lib/check-options/check-directive/sandbox.js

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+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+var config_1 = __importDefault(require("../../config"));
+var is_function_1 = __importDefault(require("../../is-function"));
+module.exports = function sandboxCheck(key, value) {
+    if (value === false) {
+        return;
+    }
+    if (value === true) {
+        return;
+    }
+    if (!Array.isArray(value)) {
+        throw new Error("\"" + value + "\" is not a valid value for " + key + ". Use an array of strings or `true`.");
+    }
+    if (value.length === 0) {
+        throw new Error(key + " must have at least one value. To block everything, set " + key + " to `true`.");
+    }
+    value.forEach(function (expression) {
+        if (is_function_1.default(expression)) {
+            return;
+        }
+        if (config_1.default.sandboxDirectives.indexOf(expression) === -1) {
+            throw new Error("\"" + expression + "\" is not a valid " + key + " directive. Remove it.");
+        }
+    });
+};