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{"version":3,"file":"workbox-range-requests.dev.js","sources":["../_version.js","../utils/calculateEffectiveBoundaries.js","../utils/parseRangeHeader.js","../createPartialResponse.js","../RangeRequestsPlugin.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n self['workbox:range-requests:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n Copyright 2018 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { assert } from 'workbox-core/_private/assert.js';\nimport '../_version.js';\n/**\n * @param {Blob} blob A source blob.\n * @param {number} [start] The offset to use as the start of the\n * slice.\n * @param {number} [end] The offset to use as the end of the slice.\n * @return {Object} An object with `start` and `end` properties, reflecting\n * the effective boundaries to use given the size of the blob.\n *\n * @private\n */\nfunction calculateEffectiveBoundaries(blob, start, end) {\n if (process.env.NODE_ENV !== 'production') {\n assert.isInstance(blob, Blob, {\n moduleName: 'workbox-range-requests',\n funcName: 'calculateEffectiveBoundaries',\n paramName: 'blob',\n });\n }\n const blobSize = blob.size;\n if ((end && end > blobSize) || (start && start < 0)) {\n throw new WorkboxError('range-not-satisfiable', {\n size: blobSize,\n end,\n start,\n });\n }\n let effectiveStart;\n let effectiveEnd;\n if (start !== undefined && end !== undefined) {\n effectiveStart = start;\n // Range values are inclusive, so add 1 to the value.\n effectiveEnd = end + 1;\n }\n else if (start !== undefined && end === undefined) {\n effectiveStart = start;\n effectiveEnd = blobSize;\n }\n else if (end !== undefined && start === undefined) {\n effectiveStart = blobSize - end;\n effectiveEnd = blobSize;\n }\n return {\n start: effectiveStart,\n end: effectiveEnd,\n };\n}\nexport { calculateEffectiveBoundaries };\n","/*\n Copyright 2018 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { assert } from 'workbox-core/_private/assert.js';\nimport '../_version.js';\n/**\n * @param {string} rangeHeader A Range: header value.\n * @return {Object} An object with `start` and `end` properties, reflecting\n * the parsed value of the Range: header. If either the `start` or `end` are\n * omitted, then `null` will be returned.\n *\n * @private\n */\nfunction parseRangeHeader(rangeHeader) {\n if (process.env.NODE_ENV !== 'production') {\n assert.isType(rangeHeader, 'string', {\n moduleName: 'workbox-range-requests',\n funcName: 'parseRangeHeader',\n paramName: 'rangeHeader',\n });\n }\n const normalizedRangeHeader = rangeHeader.trim().toLowerCase();\n if (!normalizedRangeHeader.startsWith('bytes=')) {\n throw new WorkboxError('unit-must-be-bytes', { normalizedRangeHeader });\n }\n // Specifying multiple ranges separate by commas is valid syntax, but this\n // library only attempts to handle a single, contiguous sequence of bytes.\n // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Range#Syntax\n if (normalizedRangeHeader.includes(',')) {\n throw new WorkboxError('single-range-only', { normalizedRangeHeader });\n }\n const rangeParts = /(\\d*)-(\\d*)/.exec(normalizedRangeHeader);\n // We need either at least one of the start or end values.\n if (!rangeParts || !(rangeParts[1] || rangeParts[2])) {\n throw new WorkboxError('invalid-range-values', { normalizedRangeHeader });\n }\n return {\n start: rangeParts[1] === '' ? undefined : Number(rangeP
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