Ghost: Bug: Casper 2.2.0 post preview 500 error ([post.hbs] Cannot read property 'length' of undefined)

Created on 15 Apr 2018 · 4Comments · Source: TryGhost/Ghost

Issue Summary

Upgrading to Ghost 1.22.2 works fine with my old Casper-based theme. But when I replace that modified theme (based on casper 2.1.9) with the new Casper 2.2.0 default theme it breaks post preview in Ghost editor, returning http 500 [post.hbs] Cannot read property 'length' of undefined.

"Page" preview does not seem to be impacted, just "Post".

Steps to Reproduce

Upgrade to Ghost latest and use Casper 2.2.0.

Technical details

Ghost Version: master - latest commit: 1.22.2
Server OS: Ubuntu 16.4 LTS
Node Version: v6.14.1
Browser: Chrome, also breaks with Firefox
Database: MySQL

bug server / core

Source

ss4344

👍1

Most helpful comment

Fixed via https://github.com/TryGhost/Ghost/commit/5d21ce0644475bfd2e62e0f91d3490ab91034443

kirrg001 on 15 Apr 2018

👍2

All 4 comments

I've been able to reproduce this issue and narrow it down to the has helper - options.data contains an author instead of authors key

Based on this, this issue doesn't seem to be casper-specific

I'm not exactly sure how to fix this, but I can definitely help out w/ some guidance!

Example options.data output



{ uuid: '422e202b-78aa-42ca-9638-4648a92b2cb4',

  id: '5ad2b9cc0165c40046596c82',

  title: '(Untitled)',

  slug: 'untitled',

  html: '<div class="kg-card-markdown"></div>',

  feature_image: null,

  featured: false,

  page: false,

  status: 'draft',

  locale: null,

  visibility: 'public',

  meta_title: null,

  meta_description: null,

  created_at: 2018-04-15T02:50:44.000Z,

  created_by: '1',

  updated_at: 2018-04-15T02:50:44.000Z,

  updated_by: '1',

  published_at: null,

  published_by: null,

  custom_excerpt: null,

  codeinjection_head: '',

  codeinjection_foot: '',

  og_image: null,

  og_title: null,

  og_description: null,

  twitter_image: null,

  twitter_title: null,

  twitter_description: null,

  custom_template: null,

  tags: [],

  author:

   { id: '1',

     name: 'Tester',

     slug: 'tester',

     profile_image: null,

     cover_image: null,

     bio: null,

     website: null,

     location: null,

     facebook: null,

     twitter: null,

     accessibility: null,

     locale: null,

     visibility: 'public',

     meta_title: null,

     meta_description: null,

     tour: null },

  primary_author: null,

  primary_tag: null,

  url: '/untitled/',

  comment_id: '5ad2b9cc0165c40046596c82',

  secure: false }