mirror of
https://github.com/fluxerapp/fluxer
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19 lines
598 B
JavaScript
19 lines
598 B
JavaScript
// SPDX-License-Identifier: AGPL-3.0-or-later
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const LEGACY_FONT_SOURCE = /,\s*url\([^)]*\)\s*format\("(?:woff|truetype)"\)/g;
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class MissingKatexWoff2SourceError extends Error {
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constructor(resource) {
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super(`${resource} declares no format("woff2") source, refusing to drop its legacy font sources`);
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this.name = 'MissingKatexWoff2SourceError';
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}
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}
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module.exports = function katexLegacyFontsLoader(source) {
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this.cacheable(true);
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if (!source.includes('format("woff2")')) {
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throw new MissingKatexWoff2SourceError(this.resourcePath);
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}
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return source.replace(LEGACY_FONT_SOURCE, '');
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};
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