Revert "Revert "Don't block svg loading inside of iframe based webviews""
Revert "Revert "Don't block svg loading inside of iframe based webviews""

This reverts commit a7e080af0278fcb002028fe637a8a1d432de27af.

Microsoft/vscode,Microsoft/vscode,Microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,Krzysztof-Cieslak/vscode,microsoft/vscode,microsoft/vscode,Microsoft/vscode,microsoft/vscode,Microsoft/vscode,Krzysztof-Cieslak/vscode,Krzysztof-Cieslak/vscode,eamodio/vscode,Microsoft/vscode,Krzysztof-Cieslak/vscode,Krzysztof-Cieslak/vscode,eamodio/vscode,eamodio/vscode,eamodio/vscode,microsoft/vscode,Microsoft/vscode,eamodio/vscode,Microsoft/vscode,Microsoft/vscode,Krzysztof-Cieslak/vscode,eamodio/vscode,Microsoft/vscode,microsoft/vscode,microsoft/vscode,Krzysztof-Cieslak/vscode,Krzysztof-Cieslak/vscode,Krzysztof-Cieslak/vscode,microsoft/vscode,Krzysztof-Cieslak/vscode,microsoft/vscode,Krzysztof-Cieslak/vscode,microsoft/vscode,Microsoft/vscode,microsoft/vscode,Krzysztof-Cieslak/vscode,microsoft/vscode,eamodio/vscode,Krzysztof-Cieslak/vscode,eamodio/vscode,Microsoft/vscode,Microsoft/vscode,microsoft/vscode,microsoft/vscode,microsoft/vscode,eamodio/vscode,eamodio/vscode,Krzysztof-Cieslak/vscode,eamodio/vscode,Krzysztof-Cieslak/vscode,eamodio/vscode,Microsoft/vscode,Microsoft/vscode,Microsoft/vscode,Krzysztof-Cieslak/vscode,eamodio/vscode,eamodio/vscode,Krzysztof-Cieslak/vscode,eamodio/vscode,Microsoft/vscode,eamodio/vscode,eamodio/vscode