Don't create a DataView for the "CFF " TrueType table in readTableEntry

Given that the "CFF " table may be replaced completely, during font-parsing, it shouldn't make sense to read and/or modify it piecewise.

Author: Snuffleupagus

src/core/fonts.js

@@ -1519,14 +1519,20 @@ class Font {
         data[8] = data[9] = data[10] = data[11] = 0;
         data[17] |= 0x20; // Set font optimized for cleartype flag.
       }
+      // The "CFF " table may be replaced completely, hence its data shouldn't
+      // need to be read and/or modified piecewise through a `DataView`.
+      const view =
+        tag === "CFF "
+          ? null
+          : new DataView(data.buffer, data.byteOffset, data.byteLength);
 
       return {
         tag,
         checksum,
         length,
         offset,
         data,
-        view: new DataView(data.buffer, data.byteOffset, data.byteLength),
+        view,
       };
     }