On the Skin Editor, Selecting the 'Options' or 'Resources' Tabs throw a 404 as its unable to find StaticBuilderResource

This bug will not allow you to add a resource with Themebuilder. 

With TB 5.7.7 installed, navigate to the Edit Skins page then : 

• Select either the options or resources tab. 
• You will see that theres a visible lag while trying to retrieve the resources then with the dev tools open you will see a GET 404 error. 

Selecting the "New text resource" or any of the "Name Type Actions" Under the Resources header will not work

Stacktrace

GET http://0.0.0.0:5013/admin/theme/editor/$action.getStaticBuilderResource($path) 404
(anonymous) @ VM3189:1
XMLHttpRequest.send @ batch.js?healthcheck-resources=true&hostenabled=true&locale=en-GB:2566
ajax @ jquery.js:5090
evalScript @ jquery.js:770
each @ jquery.js:572
domManip @ jquery.js:4160
append @ jquery.js:3965
html @ jquery.js:4076
(anonymous) @ jquery.mutations.js:366
trigger @ jquery.mutations.js:55
(anonymous) @ jquery.mutations.js:363
each @ jquery.js:572
each @ jquery.js:240
$.fn.html @ jquery.mutations.js:362
success @ common.js:54
success @ jquery.js:5105
xhr.onreadystatechange @ jquery.js:5045
XMLHttpRequest.send (async)
(anonymous) @ VM3189:1
XMLHttpRequest.send @ batch.js?healthcheck-resources=true&hostenabled=true&locale=en-GB:2566
ajax @ jquery.js:5090
loadTemplate @ common.js:51
(anonymous) @ common.js:135
handle @ jquery.js:1884
eventHandle @ jquery.js:1579
trigger @ jquery.js:1807
trigger @ jquery.js:1824
trigger @ jquery.js:1824
trigger @ jquery.js:1824
trigger @ jquery.js:1824
trigger @ jquery.js:1824
trigger @ jquery.js:1824
trigger @ jquery.js:1824
trigger @ jquery.js:1824
trigger @ jquery.js:1824
trigger @ jquery.js:1824
trigger @ jquery.js:1824
trigger @ jquery.js:1824
trigger @ jquery.js:1824
trigger @ jquery.js:1824
(anonymous) @ jquery.js:2352
each @ jquery.js:572
each @ jquery.js:240
trigger @ jquery.js:2351
activateWhenUnhidden @ common.js:44
proxy @ jquery.mutations.js:105
handle @ jquery.js:1884
eventHandle @ jquery.js:1579
trigger @ jquery.js:1807
trigger @ jquery.mutations.js:48
$.attr @ jquery.mutations.js:192
(anonymous) @ jquery.roles.js:973
proxy @ jquery.mutations.js:105
handle @ jquery.js:1884
eventHandle @ jquery.js:1579
trigger @ jquery.js:1807
trigger @ jquery.mutations.js:59
$.attr @ jquery.mutations.js:192
access @ jquery.js:803
attr @ jquery.js:1202
(anonymous) @ jquery.roles.js:939
proxy @ jquery.mutations.js:105
handle @ jquery.js:1884
eventHandle @ jquery.js:1579
trigger @ jquery.js:1807
trigger @ jquery.mutations.js:59
$.attr @ jquery.mutations.js:192
access @ jquery.js:803
attr @ jquery.js:1202
(anonymous) @ jquery.roles.js:537
proxy @ jquery.mutations.js:105
handle @ jquery.js:1884
eventHandle @ jquery.js:1579
trigger @ jquery.js:1807
trigger @ jquery.mutations.js:59
$.attr @ jquery.mutations.js:192
(anonymous) @ jquery.roles.js:586
handle @ jquery.js:1884
eventHandle @ jquery.js:1579
trigger @ jquery.js:1807
trigger @ jquery.js:1824
(anonymous) @ jquery.js:2352
each @ jquery.js:572
each @ jquery.js:240
trigger @ jquery.js:2351
handler @ jquery.roles.js:371
handle @ jquery.js:1884
eventHandle @ jquery.js:1579
(anonymous) @ jquery.roles.js:173
setTimeout (async)
realfocus @ jquery.roles.js:171
$.fn.focus @ jquery.roles.js:118
(anonymous) @ jquery.roles.js:571
handle @ jquery.js:1884
eventHandle @ jquery.js:1579
trigger @ jquery.js:1807
trigger @ jquery.js:1824
trigger @ jquery.js:1824
(anonymous) @ jquery.js:2352
each @ jquery.js:572
each @ jquery.js:240
trigger @ jquery.js:2351
handler @ jquery.roles.js:371
handle @ jquery.js:1884
eventHandle @ jquery.js:1579
Show 58 more frames
2edit-skins.action:1 Refused to apply style from 'http://0.0.0.0:5013/admin/theme/editor/$action.getStaticBuilderResource($path)' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.