HTML eMail rendering issue

Elastic Stack Elasticsearch
1

I belive the html sanitization comes into effect, but not sure

I'm using below output syntax to the eMail action

{{#ishighuse}} <td bgcolor="Tomato">{{jvminuse}} {{/ishighuse}}

bgcolor setting is not set and always get

28 (28 is a sample value)

If it sanitization issue, what are the elements that sanitization excludes, and how I can set specific elements to be allowed? (or) please advice if I'm missing something

NOTE 1 : cellpadding, cellspacing , border are allowed at TABLE element level

NOTE 2 : Validated that "ishighuse" is true and ensure that the logic passes thru the condition with temporary values.

2

Hey,

can you try to enable _styles for the HTML sanitizer, and use <td style='background-color: red'> and see if that works?

See https://www.elastic.co/guide/en/x-pack/6.2/actions-email.html#email-html-sanitization and https://www.elastic.co/guide/en/elasticsearch/reference/6.2/notification-settings.html#html-feature-groups

--Alex

3

Hi Alexander,

Adding the below entry alone didn't work
xpack.notification.email.html.sanitization:
allow: _styles

But, when I added below, it worked
xpack.notification.email.html.sanitization:
allow: _styles,_tables,_blocks,_links,_formatting
NOTE: _blocks,_links may not be required
Probably I'm misinterpreting documentation. I didn't explicitly added _tables etc. initially as the documentation specified "By default, Watcher allows the following features: body, head, _tables, _links, _blocks, _formatting and img:embedded" -- https://www.elastic.co/guide/en/x-pack/6.2/actions-email.html#email-html-sanitization

Thanks for your help.

4

Hey,

the option requires you to set all the allowed options at once, so it makes sense that your second try worked, not your first.

Hope that helps!

--Alex

5

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