diff --git a/README.md b/README.md
index ece09f6..ab04626 100644
--- a/README.md
+++ b/README.md
@@ -120,8 +120,7 @@ characters, this balances name length with an ample space for possible names.
 
 ## Footnotes
 
-[^1]:
-    Barring historical pedantry, "Postgres" and "PostgreSQL" are essentially
+[^1]: Barring historical pedantry, "Postgres" and "PostgreSQL" are essentially
     synonymous and are often used interchangeably. As a matter of convention
     throughout Phonograph docs, "Postgres" is largely used to refer to the
     database software, while "PostgreSQL" is typically used to refer to the
diff --git a/svelte/src/table-viewer.webc.svelte b/svelte/src/table-viewer.webc.svelte
index 0c6d405..96cd581 100644
--- a/svelte/src/table-viewer.webc.svelte
+++ b/svelte/src/table-viewer.webc.svelte
@@ -570,11 +570,12 @@
         {#each lazy_data.fields as field, field_idx}
           <TableCell
             coords={{ region, row_idx, field_idx }}
-            cursor={coords_eq(selections[0].coords, {
-              region,
-              row_idx,
-              field_idx,
-            })}
+            cursor={selections.length !== 0 &&
+              coords_eq(selections[0].coords, {
+                region,
+                row_idx,
+                field_idx,
+              })}
             {field}
             onbecomecursor={(focus) => {
               focus_cursor = focus;
diff --git a/svelte/vite.config.ts b/svelte/vite.config.ts
index 3eef7da..e775aa3 100644
--- a/svelte/vite.config.ts
+++ b/svelte/vite.config.ts
@@ -19,5 +19,6 @@ export default defineConfig({
         assetFileNames: "[name].[ext]",
       },
     },
+    sourcemap: true,
   },
 });