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Add explaination about errors in logs

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garronej 2021-09-07 23:48:06 +02:00
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@ -75,6 +75,7 @@ If you already have a Keycloak custom theme, it can be easily ported to Keycloak
- [Possible workarounds](#possible-workarounds) - [Possible workarounds](#possible-workarounds)
- [Implement context persistence (optional)](#implement-context-persistence-optional) - [Implement context persistence (optional)](#implement-context-persistence-optional)
- [Kickstart video](#kickstart-video) - [Kickstart video](#kickstart-video)
- [About the errors related to `objectToJson` in Keycloak logs.](#about-the-errors-related-to-objecttojson-in-keycloak-logs)
- [Email domain whitelist](#email-domain-whitelist) - [Email domain whitelist](#email-domain-whitelist)
# Requirements # Requirements
@ -398,6 +399,23 @@ flash of the blank html before the js bundle have been evaluated
*NOTE: keycloak-react-theming was renamed keycloakify since this video was recorded* *NOTE: keycloak-react-theming was renamed keycloakify since this video was recorded*
[![kickstart_video](https://user-images.githubusercontent.com/6702424/108877866-f146ee80-75ff-11eb-8120-003b3c5f6dd8.png)](https://youtu.be/xTz0Rj7i2v8) [![kickstart_video](https://user-images.githubusercontent.com/6702424/108877866-f146ee80-75ff-11eb-8120-003b3c5f6dd8.png)](https://youtu.be/xTz0Rj7i2v8)
# About the errors related to `objectToJson` in Keycloak logs.
The logs of your keycloak server will always show this kind of errors every time a client request a page:
```log
FTL stack trace ("~" means nesting-related):
- Failed at: #local value = object[key] [in template "login.ftl" in macro "objectToJson" at line 70, column 21]
- Reached through: @compress [in template "login.ftl" in macro "objectToJson" at line 36, column 5]
- Reached through: @objectToJson object=value depth=(dep... [in template "login.ftl" in macro "objectToJson" at line 81, column 27]
- Reached through: @compress [in template "login.ftl" in macro "objectToJson" at line 36, column 5]
- Reached through: @objectToJson object=(.data_model) de... [in template "login.ftl" at line 163, column 43]
```
Theses are expected and can be safely ignored.
To [converts the `.ftl` values into a JavaScript object](https://github.com/InseeFrLab/keycloakify/blob/main/src/bin/build-keycloak-theme/generateFtl/common.ftl)
without making assumptions on the `.data_model` we have to do things that throws.
It's all-right though because every statement that can fail is inside an `<#attempt><#recorver>` block but it results in errors being printed to the logs.
# Email domain whitelist # Email domain whitelist
If you want to restrict the emails domain that can register, you can use [this plugin](https://github.com/micedre/keycloak-mail-whitelisting) If you want to restrict the emails domain that can register, you can use [this plugin](https://github.com/micedre/keycloak-mail-whitelisting)