Function addModulePreloads

src/compiler/prerender/prerender-optimize.ts:173–193

(
  doc: Document,
  hydrateOpts: d.PrerenderHydrateOptions,
  hydrateResults: d.HydrateResults,
  componentGraph: Map<string, string[]>,
)

  .trim();

export const addModulePreloads = (
  doc: Document,
  hydrateOpts: d.PrerenderHydrateOptions,
  hydrateResults: d.HydrateResults,
  componentGraph: Map<string, string[]>,
) => {
  if (!componentGraph) {
    return false;
  }

  const staticComponents = hydrateOpts.staticComponents || [];

  const cmpTags = hydrateResults.components.filter((cmp) => !staticComponents.includes(cmp.tag));

  const modulePreloads = unique(
    flatOne(cmpTags.map((cmp) => getScopeId(cmp.tag, cmp.mode)).map((scopeId) => componentGraph.get(scopeId) || [])),
  );

  injectModulePreloads(doc, modulePreloads);
  return true;
};

export const removeModulePreloads = (doc: Document) => {
  const links = doc.querySelectorAll('link[rel="modulepreload"]');