Forum Discussion
503 errors with custom visuals with report server using form authentication
Did you ever resolve this issue? We are experiencing exactly the same problem, also with custom forms authentication.
Even after many updates to Power BI Reportserver to the most current version (Mai 2023), this problem persists.
I try to avoid all custom visuals and the one and only custom visual I use in my reports for now is "Text Filter" (why is there no build in visual in PBI ^^).
It sometimes disappears, but after switching a tab in the PBI report and switching back it appears again (sometimes not ...).
I'm currently trying to integrate some D3.js with the corresponding custom visual to give my reports an extra touch, and the problem is back again.
Currently Firefox seams to have no problems with custom visuals .... but Edge and Chrome have.
Maybe it has something to do with how complex the report page is - more non custom visuals on the same reportpage makes the problem worse.
So if someone has a clue what's going on ... just drop your 2 cents here 😉