packages/next/client/amp-dev.js
async function tryApplyUpdates () {
  if (!isUpdateAvailable() || !canApplyUpdates()) {
    return
  }
  try {
    const res = await fetch(`${hotUpdatePath}${curHash}.hot-update.json`)
    const data = await res.json()
    const curPage = page === '/' ? 'index' : page
    const pageUpdated = Object.keys(data.c)
      .some(mod => {
        return (
          mod.indexOf(`pages${curPage.substr(0, 1) === '/' ? curPage : `/${curPage}`}`) !== -1 ||
          mod.indexOf(`pages${curPage.substr(0, 1) === '/' ? curPage : `/${curPage}`}`.replace(/\//g, '\\')) !== -1
        )
      })

    if (pageUpdated) {
      document.location.reload(true)
    } else {
      curHash = mostRecentHash
    }
  } catch (err) {
    console.error('Error occurred checking for update', err)
    document.location.reload(true)
  }
}
async function tryApplyUpdates () {
  if (!isUpdateAvailable() || !canApplyUpdates()) {
    return
  }
  try {
    const res = await fetch(`${hotUpdatePath}${curHash}.hot-update.json`)
    const data = await res.json()
    const curPage = page === '/' ? 'index' : page
    const pageUpdated = Object.keys(data.c)
      .some(mod => {
        return (
          mod.indexOf(`pages${curPage.substr(0, 1) === '/' ? curPage : `/${curPage}`}`) !== -1 ||
          mod.indexOf(`pages${curPage.substr(0, 1) === '/' ? curPage : `/${curPage}`}`.replace(/\//g, '\\')) !== -1
        )
      })

    if (pageUpdated) {
      document.location.reload(true)
    } else {
      curHash = mostRecentHash
    }
  } catch (err) {
    console.error('Error occurred checking for update', err)
    document.location.reload(true)
  }
}
async function tryApplyUpdates ( ) { if ( ! isUpdateAvailable ( ) || ! canApplyUpdates ( ) ) { return } try { const res = await fetch ( ` ${ hotUpdatePath } ${ curHash } ` ) const data = await res . json ( ) const curPage = page === '/' ? 'index' : page const pageUpdated = Object . keys ( data . c ) . some ( mod => { return ( mod . indexOf ( ` ${ curPage . substr ( 0 , 1 ) === '/' ? curPage : ` ${ curPage } ` } ` ) !== - 1 || mod . indexOf ( ` ${ curPage . substr ( 0 , 1 ) === '/' ? curPage : ` ${ curPage } ` } ` . replace ( / \/ / g , '\\' ) ) !== - 1 ) } ) if ( pageUpdated ) { document . location . reload ( true ) } else { curHash = mostRecentHash } } catch ( err ) { console . error ( 'Error occurred checking for update' , err ) document . location . reload ( true ) } }
This function reads code updates on the fly and hard reloads the page when it has changed.
This function reads code updates on the fly and hard reloads the page when it has changed .