[SalesForce] SVG Icons not displaying in Spring ’17 pre-release environment

I'm seeing SVG icons not rendering in a Spring '17 environment. I'm using custom SVG lightning component from SLDS framework. The icons in my component continue to display correctly in existing Winter 17 environment of platform, but when I test in Spring '17 all of the icons are not displayed.

When I checked icon path in browser console, i noticed all of the icons are having incorrect Path URL in the SVG URL elements. And I'm using documented way to set SVG Url:

{!$Resource.mynmsp__SLDS0202 + '/assets/icons/utility-sprite/svg/symbols.svg#search'}

The above SVG URL is evaluated correctly as:

/resource/1470228498000/mynmsp__SLDS0202/assets/icons/utility-sprite/svg/symbols.svg#search

But in Spring '17 pre-release orgs I'm seeing lots of Console Errors like this:
Unsafe attempt to load URL

https://vc-prerelease-dev-ed–advpm.gus.visual.force.com/resource/1470228498000/mynmsp__SLDS0202/assets/icons/utility-sprite/svg/symbols.svg#search
from frame with URL
https://vc-prerelease-dev-ed.lightning.force.com/one/one.app#/n/mynmsp__My_Lightning_App?t=1484050965092.
Domains, protocols and ports must match.

UPDATE:
I'm experiencing similar issue in the Utility Bar, when I drop my custom lightning component into it. No svg icons are loaded, citing similar error message in browser console window (mentioned above).

Best Answer

As Doug Chasman answered here, there is currently a global issue with static resources in Spring '17. I guess you can create a case if you want to know more about when the fix is gonna be live.

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