33 lines
1.1 KiB
TypeScript
33 lines
1.1 KiB
TypeScript
// Take care with < (which has special meaning inside script tags)
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// See: https://github.com/sveltejs/kit/blob/ff9a27b4/packages/kit/src/runtime/server/page/serialize_data.js#L4-L28
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const replacements = {
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'<': '\\u003C',
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'\u2028': '\\u2028',
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'\u2029': '\\u2029',
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};
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const pattern = new RegExp(`[${Object.keys(replacements).join('')}]`, 'g');
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/**
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* Serializes a POJO into a HTML <script> tag that can be read clientside by
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* `deserializeServerData`.
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*
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* Use this to share data between serverside and clientside. Include the
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* returned HTML in the response to a client to allow it to read this data.
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*
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* @param data data to serialize
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* @returns serialized data (or empty string if serialization fails)
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*/
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export function serializeJSONData(data: object): string {
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try {
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return JSON.stringify(data).replace(
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pattern,
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(match) => replacements[match],
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);
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} catch (e) {
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// Don't let recursive data (or other non-serializable things) throw.
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// We'd rather just let the serialize no-op to avoid breaking consumers.
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return '';
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}
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}
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