Your HTML mashup isn't shown correctly wherever it is embedded, even though it is working in the preview.
SAP Hybris Cloud for Customer
Reproducing the Issue
Create a new HTML mashup.
Enter your HTML code.
Embed the mashup in any given view.
Notice that the HTML code is shown corrupt.
This issue is usually caused by German Umlauts in the HTML code (e.g. ä, ö, ü).
The issue will be fixed with the 1808 release of Cloud for Customer.
As a workaround you can use HTML-Umlauts in the HTML code:
ä -> ä
ö -> ö
ü -> ü
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