I am trying to get a report in SSRS to open in a new tab via the Go To URL action of a matrix report. If I create an expression similar to
="http://server/ReportServer/Pages/ReportViewer.aspx?/subfolder/Events&status_param="& fields!Status.value &"&rc:Toolbar=false" &"&rs:ClearSession=True" &"&rc:command=render" &"&rc:Target=_blank"
and click on the link, the report opens in the same tab. Looking at the html in Inspect Element, I see that the link has been translated to
<A tabIndex=2 class=Ad0d357c05259475781d83a1be939ef9312a href="http://server/ReportServer/Pages/ReportViewer.aspx?/Subfolder/Events&status_param=param1&rc:Toolbar=false&rs:ClearSession=True&rc:command=render&rc:LinkTarget=_blank" target=_top>param1</A>
Changing target=_top to target=_blank and clicking the link again opens the report in a new tab.
Any ideas on why my expression is not setting target to _blank and how I can get the report opened in a new tab? I cannot use windows.open as this is blocked.