A critical vulnerability was discovered in React Server Components (Next.js). Our systems remain protected but we advise to update packages to newest version. Learn More

Ha Bui
Ha Bui  -  CMS
Aug 24, 2022
  2712
(3 votes)

How to integrate TinyMCE cloud plugin with EPiServer

Hi everyone,

Recently, we got many questions regarding How to integrate the TinyMCE external cloud plugin (SpellCheckerPro for instance) with EPiServer CMS and EPiServer.CMS.TinyMCE add-on.

Did you try that before? And got a headache with kind of below errors?

Don't worry! No more headaches with the recent release of EPiServer TinyMCE!

For the SpellCheckerPro plugin then few lines of the configuration below will help you easy to integrate with EPiServer CMS:

  1. Prerequisites
    TinyMCE cloud API Key
  2. EPiServer TinyMCE Initialization
    context.Services.Configure<TinyMceConfiguration>(config =>
                {
                    config.Default()
                        .AddExternalPlugin("tinymcespellchecker", "https://cdn.tiny.cloud/1/<YOUR_API_KEY>/tinymce/4.9.11-104/plugins/tinymcespellchecker/plugin.min.js")
                        .AddEpiserverSupport()
                        .Toolbar("spellchecker language spellcheckdialog")
                        .AddSetting("spellchecker_rpc_url", "https://spelling.tiny.cloud")
                        .AddSetting("spellchecker_api_key", "<YOUR_API_KEY>");
                }

    Note: Because EPiServer CMS TinyMCE is using TinyMCE v4 so please choose the correct version of the SpellCheckerPro plugin. Otherwise, it won't work as expected!

  3. Screenshots

Easy right? I hope that helped you!

Aug 24, 2022

Comments

Gaurav Bhatia
Gaurav Bhatia Aug 29, 2022 07:08 AM

Thanks for posting this!

I have one question: why do we need to mention the "spellchecker_rpc_url" setting? I think its already referenced in the plugin itself (https://cdn.tiny.cloud/1/<YOUR_API_KEY>/tinymce/4.9.11-104/plugins/tinymcespellchecker/plugin.min.js).

Please login to comment.
Latest blogs
A day in the life of an Optimizely OMVP: Learning Optimizely Just Got Easier: Introducing the Optimizely Learning Centre

On the back of my last post about the Opti Graph Learning Centre, I am now happy to announce a revamped interactive learning platform that makes...

Graham Carr | Jan 31, 2026

Scheduled job for deleting content types and all related content

In my previous blog post which was about getting an overview of your sites content https://world.optimizely.com/blogs/Per-Nergard/Dates/2026/1/sche...

Per Nergård (MVP) | Jan 30, 2026

Working With Applications in Optimizely CMS 13

💡 Note:  The following content has been written based on Optimizely CMS 13 Preview 2 and may not accurately reflect the final release version. As...

Mark Stott | Jan 30, 2026

Experimentation at Speed Using Optimizely Opal and Web Experimentation

If you are working in experimentation, you will know that speed matters. The quicker you can go from idea to implementation, the faster you can...

Minesh Shah (Netcel) | Jan 30, 2026