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aeade59677
[web] pdf-caching: disable pdf-caching in Opera browser GitOrigin-RevId: 8c0cefc4fa4fccd74c58649c000be14643788514
27 lines
970 B
JavaScript
27 lines
970 B
JavaScript
import getMeta from '../../../utils/meta'
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const hasTextEncoder = typeof TextEncoder !== 'undefined'
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if (!hasTextEncoder) {
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console.warn('TextEncoder is not available. Disabling pdf-caching.')
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}
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const isOpera =
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Array.isArray(navigator.userAgentData?.brands) &&
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navigator.userAgentData.brands.some(b => b.brand === 'Opera')
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if (isOpera) {
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console.warn('Browser cache is limited in Opera. Disabling pdf-caching.')
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}
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function isFlagEnabled(flag) {
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if (!hasTextEncoder) return false
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if (isOpera) return false
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return getMeta('ol-splitTestVariants')?.[flag] === 'enabled'
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}
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export const cachedUrlLookupEnabled = isFlagEnabled(
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'pdf-caching-cached-url-lookup'
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)
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export const prefetchingEnabled = isFlagEnabled('pdf-caching-prefetching')
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export const prefetchLargeEnabled = isFlagEnabled('pdf-caching-prefetch-large')
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export const enablePdfCaching = isFlagEnabled('pdf-caching-mode')
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export const trackPdfDownloadEnabled = isFlagEnabled('track-pdf-download')
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