Use of undefined constant IDNA_NONTRANSITIONAL_TO_ASCII - assumed 'IDNA_NONTRANSITIONAL_TO_ASCII'

[evjohns-jfd]

Description

Error in:
/vendor/craftcms/cms/src/web/Request.php

line 1157:

if (
    !empty($parsed['host']) &&
    $hostName &&
    $parsed['host'] !== $hostName &&
  (
     !function_exists('idn_to_ascii') ||
     idn_to_ascii($parsed['host'], IDNA_NONTRANSITIONAL_TO_ASCII, INTL_IDNA_VARIANT_UTS46) !== $hostName
    )
) {
     continue;
}

Error:

Use of undefined constant IDNA_NONTRANSITIONAL_TO_ASCII - assumed 'IDNA_NONTRANSITIONAL_TO_ASCII'

Steps to reproduce

1. Set the sites base domain and then visit a different domain.
   e.g. set base domain to example.com then visit www.example.com

Additional info

• Craft version: Craft Pro 3.2.9
• PHP version: 7.1.31
• Database driver & version: MySQL 5.5.62
• Plugins & versions:

Amazon S3: 1.2.5
Redactor: 2.3.3.2
Supertable: 2.2.1
Amazon S3: 1.0.9

[brandonkelly]

Just fixed this for the next release.

To get the fix early, change your craftcms/cms requirement in composer.json to:

"require": {
  "craftcms/cms": "dev-develop#259297cd890398c3ac16946b7c898b2ad040dbbe as 3.2.9",
  "...": "..."
}

Then run composer update.