Font family supportAllValues is not respected

[timbarclay]

Describe the bug
It should be possible to allow only a constrained set of font families and to disallow any others from being used when pasted in by setting the fontFamily.supportAllValues property to false. But setting this property doesn't have any effect.

To Reproduce
Install the plugin and use the following custom ckeditor.txt file:

globalThis.CKEditorConfig = {
  configs: {
    toolbar: {
      editorConfig: {
        plugins: [
          CKEditor5.alignment.Alignment,
          CKEditor5.autoformat.Autoformat,
          CKEditor5.image.AutoImage,
          CKEditor5.link.AutoLink,
          CKEditor5.autosave.Autosave,
          CKEditor5.ui.BalloonToolbar,
          CKEditor5.blockQuote.BlockQuote,
          CKEditor5.ui.BlockToolbar,
          CKEditor5.basicStyles.Bold,
          CKEditor5.basicStyles.Code,
          CKEditor5.htmlSupport.DataFilter,
          CKEditor5.htmlSupport.DataSchema,
          CKEditor5.essentials.Essentials,
          CKEditor5.findAndReplace.FindAndReplace,
          CKEditor5.font.FontBackgroundColor,
          CKEditor5.font.FontColor,
          CKEditor5.font.FontFamily,
          CKEditor5.font.FontSize,
          CKEditor5.htmlSupport.GeneralHtmlSupport,
          CKEditor5.heading.Heading,
          CKEditor5.highlight.Highlight,
          CKEditor5.horizontalLine.HorizontalLine,
          CKEditor5.htmlSupport.HtmlComment,
          CKEditor5.htmlEmbed.HtmlEmbed,
          CKEditor5.image.Image,
          CKEditor5.image.ImageCaption,
          CKEditor5.image.ImageResize,
          CKEditor5.image.ImageStyle,
          CKEditor5.image.ImageToolbar,
          CKEditor5.indent.Indent,
          CKEditor5.indent.IndentBlock,
          CKEditor5.basicStyles.Italic,
          CKEditor5.link.Link,
          CKEditor5.link.LinkImage,
          CKEditor5.list.List,
          CKEditor5.list.ListProperties,
          CKEditor5.mediaEmbed.MediaEmbed,
          CKEditor5.mediaEmbed.MediaEmbedToolbar,
          CKEditor5.mention.Mention,
          CKEditor5.pageBreak.PageBreak,
          CKEditor5.paragraph.Paragraph,
          CKEditor5.pasteFromOffice.PasteFromOffice,
          CKEditor5.image.PictureEditing,
          CKEditor5.removeFormat.RemoveFormat,
          CKEditor5.sourceEditing.SourceEditing,
          CKEditor5.specialCharacters.SpecialCharacters,
          CKEditor5.specialCharacters.SpecialCharactersArrows,
          CKEditor5.specialCharacters.SpecialCharactersCurrency,
          CKEditor5.specialCharacters.SpecialCharactersLatin,
          CKEditor5.specialCharacters.SpecialCharactersMathematical,
          CKEditor5.specialCharacters.SpecialCharactersText,
          CKEditor5.strapiPlugins.StrapiMediaLib,
          CKEditor5.strapiPlugins.StrapiUploadAdapter,
          CKEditor5.basicStyles.Strikethrough,
          CKEditor5.basicStyles.Subscript,
          CKEditor5.basicStyles.Superscript,
          CKEditor5.table.Table,
          CKEditor5.table.TableCaption,
          CKEditor5.table.TableCellProperties,
          CKEditor5.table.TableColumnResize,
          CKEditor5.table.TableProperties,
          CKEditor5.table.TableToolbar,
          CKEditor5.basicStyles.Underline,
          CKEditor5.wordCount.WordCount,
        ],
        fontFamily: {
          options: ['Open Sans, sans-serif', 'Georgia, serif'],
          supportAllValues: false,
        },
      },
    },
  },
};

Expected behavior
Any custom fonts should be stripped when text is pasted in. Instead, all values are supported.

Screenshots

This screenshot shows that the fontFamily.options list has been respected, but the supportAllValues property has not.

please complete the following information:

• package.json

{
  "name": "cms",
  "version": "0.1.0",
  "private": true,
  "description": "A Strapi application",
  "license": "MIT",
  "author": {
    "name": "A Strapi developer"
  },
  "workspaces": [
    "./src/plugins/preview-button",
    "./src/plugins/treeview",
    "./src/plugins/release-manager"
  ],
  "scripts": {
    "build": "npm run build --workspaces && strapi build",
    "develop": "strapi develop",
    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\"",
    "lint:ci": "npm run lint -- -o testResults/eslint || true",
    "lint:fix": "npm run lint -- --fix",
    "start": "strapi start",
    "strapi": "strapi",
    "pretest": "npm run build --workspaces",
    "test": "jest -i --detectOpenHandles",
    "test:ci": "npm run test -- --ci --reporters=default --reporters=jest-junit",
    "test:ci:all": "npm run lint:ci ; npm run test:ci",
    "test:cov": "npm run test -- --coverage",
    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
    "test:unit-ci": "npm run test:cov -- --ci --reporters=default --reporters=jest-junit"
  },
  "jest-junit": {
    "outputDirectory": "testResults",
    "uniqueOutputName": "true"
  },
  "dependencies": {
    "@_sh/strapi-plugin-ckeditor": "^2.1.1",
    "@aws-sdk/client-s3": "^3.377.0",
    "@nestjs/common": "^10.1.2",
    "@notum-cz/strapi-plugin-content-versioning": "^1.2.9",
    "@strapi/plugin-i18n": "~4.15.0",
    "@strapi/plugin-users-permissions": "~4.15.0",
    "@strapi/provider-email-amazon-ses": "~4.15.0",
    "@strapi/provider-upload-aws-s3": "~4.15.0",
    "@strapi/strapi": "~4.15.0",
    "aws-sdk": "^2.1438.0",
    "axios": "^1.4.0",
    "csv-parser": "^3.0.0",
    "fs": "^0.0.1-security",
    "pdf.js-extract": "^0.2.1",
    "pg": "8.8.0",
    "react": "^18.2.0",
    "react-dom": "^18.2.0",
    "react-router-dom": "^5.3.4",
    "sqs-consumer": "^7.2.2",
    "strapi-plugin-populate-deep": "^3.0.0",
    "styled-components": "^5.3.11",
    "unzip-stream": "^0.3.1",
    "unzipit": "^1.4.3"
  },
  "devDependencies": {
    "@aws-sdk/util-stream-node": "^3.374.0",
    "@testing-library/react": "^14.0.0",
    "@testing-library/user-event": "^14.5.1",
    "@types/jest": "^29.5.3",
    "@types/supertest": "^2.0.12",
    "@typescript-eslint/eslint-plugin": "^5.59.7",
    "@typescript-eslint/parser": "^5.59.7",
    "aws-sdk-client-mock": "^3.0.0",
    "aws-sdk-client-mock-jest": "^3.0.0",
    "eslint": "^8.46.0",
    "eslint-config-prettier": "^8.8.0",
    "eslint-plugin-prettier": "^4.2.1",
    "jest": "^29.6.3",
    "jest-junit": "^16.0.0",
    "nock": "^13.3.3",
    "prettier": "^2.8.8",
    "sqlite3": "^5.1.6",
    "supertest": "^6.3.3",
    "testcontainers": "^10.2.1",
    "ts-jest": "^29.1.1",
    "ts-node": "^10.9.1",
    "uuid": "^9.0.0"
  },
  "engines": {
    "node": ">=14.19.1 <=18.x.x",
    "npm": ">=6.0.0"
  },
  "strapi": {
    "uuid": "a6a9bfb9-2120-436d-a040-39f4f2e87023"
  }
}

• node version - v18.17.1

[nshenderov]

This is not related to the plugin integration but to CKEditor itself. The config gets delivered properly.