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noway.gabb.fr
1// Take care with < (which has special meaning inside script tags)
2// See: https://github.com/sveltejs/kit/blob/ff9a27b4/packages/kit/src/runtime/server/page/serialize_data.js#L4-L28
3const replacements = {
4 '<': '\\u003C',
5 '\u2028': '\\u2028',
6 '\u2029': '\\u2029',
7};
8
9const pattern = new RegExp(`[${Object.keys(replacements).join('')}]`, 'g');
10
11/**
12 * Serializes a POJO into a HTML <script> tag that can be read clientside by
13 * `deserializeServerData`.
14 *
15 * Use this to share data between serverside and clientside. Include the
16 * returned HTML in the response to a client to allow it to read this data.
17 *
18 * @param data data to serialize
19 * @returns serialized data (or empty string if serialization fails)
20 */
21export function serializeJSONData(data: object): string {
22 try {
23 return JSON.stringify(data).replace(
24 pattern,
25 (match) => replacements[match],
26 );
27 } catch (e) {
28 // Don't let recursive data (or other non-serializable things) throw.
29 // We'd rather just let the serialize no-op to avoid breaking consumers.
30 return '';
31 }
32}