BREAKING: remove support for JSON imports (#5037)

This commit removes support for importing JSON files as modules.

This change is dictated by security; browsers rolled back on this
support as well.

1 files changed, 0 insertions, 5 deletions

diff --git a/cli/js/compiler/sourcefile.ts b/cli/js/compiler/sourcefile.ts
index a55de080b..3d547551f 100644
--- a/cli/js/compiler/sourcefile.ts
+++ b/cli/js/compiler/sourcefile.ts
@@ -34,11 +34,6 @@ function getExtension(fileName: string, mediaType: MediaType): ts.Extension {
       return fileName.endsWith(".d.ts") ? ts.Extension.Dts : ts.Extension.Ts;
     case MediaType.TSX:
       return ts.Extension.Tsx;
-    case MediaType.Json:
-      // we internally compile JSON, so what gets provided to the TypeScript
-      // compiler is an ES module, but in order to get TypeScript to handle it
-      // properly we have to pretend it is TS.
-      return ts.Extension.Ts;
     case MediaType.Wasm:
       // Custom marker for Wasm type.
       return ts.Extension.Js;