Add/change image in WebI document using RESTful Web Services

Hi everyone!

Is it possible to add or change image in WebI document using RESTful Web Services?

I tried to create new cell in header with background image by following request:

POST .../biprws/raylight/v1/documents/176592/reports/1/elements/

Payload:

<element type="Cell">

<id>14</id>

<reference>1.E</reference>

<name>Cell 2</name>

<parentId>1</parentId>

<size autofitHeight="false" autofitWidth="false" minimalHeight="1875.0" minimalWidth="5625.0" />

<position newVerticalPage="false" oneVerticalPage="false" repeatOnEveryVerticalPage="false" newHorizontalPage="false" oneHorizontalPage="false" verticalAnchorType="None" horizontalAnchorType="None" y="0.0" x="363.0" />

<hide whenEmpty="false" always="false" />

<padding bottom="144.0" top="144.0" right="216.0" left="216.0" />

<style>

<background>

<image display="Normal" src="bores://00003">

<alignment vertical="Top" horizontal="Left" />

</image>

</background>

<font face="Arial" size="12" rgb="#333333" underline="false" strikethrough="false" bold="true" italic="false" />

<alignment wrapText="false" vertical="Center" horizontal="Auto" />

</style>

</element>

This request works successfully, but I've got Internal Server Error 500 when trying to save document changes. I face the same problem trying to change background image of existing cell.

Does anyone know how to solve this problem?

Regards,

Uladzislau