Umbraco Forms and Rich text editor field in Azure web app

[renaldas]

Which Umbraco version are you using? (Please write the exact version, example: 10.1.0)

13.4.1

Bug summary

I am encountering an issue while using Umbraco Forms (version 13.2.1) when saving content with the Rich Text Editor. The error only occurs when the project is hosted on Azure Web App, while it functions correctly in my local development environment.

Endpoint: umbraco/backoffice/UmbracoForms/Field/ValidateSettings
Error: 500 Internal Server Error
Exception Message: "Object reference not set to an instance of an object."
Console Log Snippet:

umbraco-backoffice-j…139254866c26caa:147 Possibly unhandled rejection: {"data":{"ExceptionMessage":"Object reference not set to an instance of an object.","ExceptionType":null,"StackTrace":null},"status":500,"config":{"method":"POST","transformRequest":[null],"transformResponse":[null],"jsonpCallbackParam":"callback","url":"backoffice/UmbracoForms/Field/ValidateSettings","data":{"caption":"Payment","tooltip":null,"placeholder":null,"cssClass":null,"alias":"payment","id":"ffe59913-bd22-4c46-efea-cf5b321b10de","fieldTypeId":"1f8d45f8-76e6-4550-a0f5-9637b8454619","prevalueSourceId":"00000000-0000-0000-0000-000000000000","dataSourceFieldKey":null,"containsSensitiveData":false,"mandatory":false,"regex":null,"requiredErrorMessage":null,"invalidErrorMessage":null,"condition":{"id":"cf835316-47f5-4742-affd-db9616aa62f7","enabled":false,"actionType":"Show","logicType":"All","rules":[]},"settings":{"Html":{"markup":"<p data-pm-slice=\"1 1 [&quot;table&quot;,{},&quot;table_row&quot;,{},&quot;table_cell&quot;,{&quot;colspan&quot;:1,&quot;rowspan&quot;:1,&quot;colwidth&quot;:null}]\"><em>An invoice will be generated on receipt</em></p>\n<p data-pm-slice=\"1 1 [&quot;table&quot;,{},&quot;table_row&quot;,{},&quot;table_cell&quot;,{&quot;colspan&quot;:1,&quot;rowspan&quot;:1,&quot;colwidth&quot;:null}]\">&nbsp;</p>\n<p data-pm-slice=\"1 1 [&quot;table&quot;,{},&quot;table_row&quot;,{},&quot;table_cell&quot;,{&quot;colspan&quot;:1,&quot;rowspan&quot;:1,&quot;colwidth&quot;:null}]\"><em>teststt</em></p>","blocks":{"layout":{"Umbraco.TinyMCE":[]},"contentData":[],"settingsData":[]}},"ShowLabel":"False"},"preValues":[],"allowedUploadTypes":null,"allowMultipleFileUploads":true,"removePrevalueEditor":true},"headers":{"Accept":"application/json, text/plain, */*","Content-Type":"application/json;charset=utf-8","X-Requested-With":"XMLHttpRequest","X-UMB-XSRF-TOKEN":"x"}},"statusText":"","xhrStatus":"complete"}

The error occurs specifically when trying to save settings related to the Rich Text Editor.

Any ideas, thank you :)

Steps to reproduce

Host in Azure web app
Edit the form with rich text field
Save and you will see error

[github-actions]

Hi there @renaldas!

Firstly, a big thank you for raising this issue. Every piece of feedback we receive helps us to make Umbraco better.

We really appreciate your patience while we wait for our team to have a look at this but we wanted to let you know that we see this and share with you the plan for what comes next.

• We'll assess whether this issue relates to something that has already been fixed in a later version of the release that it has been raised for.
• If it's a bug, is it related to a release that we are actively supporting or is it related to a release that's in the end-of-life or security-only phase?
• We'll replicate the issue to ensure that the problem is as described.
• We'll decide whether the behavior is an issue or if the behavior is intended.

We wish we could work with everyone directly and assess your issue immediately but we're in the fortunate position of having lots of contributions to work with and only a few humans who are able to do it. We are making progress though and in the meantime, we will keep you in the loop and let you know when we have any questions.

Thanks, from your friendly Umbraco GitHub bot 🤖 🙂