diff --git a/plugins/code-coverage-backend/src/service/router.ts b/plugins/code-coverage-backend/src/service/router.ts
index aba5326f5d..f2e34cd07a 100644
--- a/plugins/code-coverage-backend/src/service/router.ts
+++ b/plugins/code-coverage-backend/src/service/router.ts
@@ -33,7 +33,11 @@ import { aggregateCoverage, CoverageUtils } from './CoverageUtils';
 import { Cobertura } from './converter/cobertura';
 import { Jacoco } from './converter/jacoco';
 import { Converter } from './converter';
-import { EntityRef, parseEntityName } from '@backstage/catalog-model';
+import {
+  EntityRef,
+  getEntitySourceLocation,
+  parseEntityName,
+} from '@backstage/catalog-model';
 
 export interface RouterOptions {
   config: Config;
@@ -127,20 +131,20 @@ export const makeRouter = async (
       throw new InputError('Need path query parameter');
     }
 
-    const sourceLocation =
-      entityLookup.metadata.annotations?.['backstage.io/source-location'];
+    const sourceLocation = getEntitySourceLocation(entityLookup);
+
     if (!sourceLocation) {
       throw new InputError(
         `No "backstage.io/source-location" annotation on entity ${entity}`,
       );
     }
 
-    const vcs = scm.byUrl(sourceLocation);
+    const vcs = scm.byUrl(sourceLocation.target);
     if (!vcs) {
       throw new InputError(`Unable to determine SCM from ${sourceLocation}`);
     }
 
-    const scmTree = await urlReader.readTree(sourceLocation);
+    const scmTree = await urlReader.readTree(sourceLocation.target);
     const scmFile = (await scmTree.files()).find(f => f.path === path);
     if (!scmFile) {
       res.status(400).json({
diff --git a/plugins/code-coverage/src/components/FileExplorer/FileContent.tsx b/plugins/code-coverage/src/components/FileExplorer/FileContent.tsx
index 6844557307..e4ade53f37 100644
--- a/plugins/code-coverage/src/components/FileExplorer/FileContent.tsx
+++ b/plugins/code-coverage/src/components/FileExplorer/FileContent.tsx
@@ -19,7 +19,7 @@ import { useApi } from '@backstage/core-api';
 import { useEntity } from '@backstage/plugin-catalog-react';
 import { useAsync } from 'react-use';
 import { codeCoverageApiRef } from '../../api';
-import { Progress } from '@backstage/core';
+import { Progress, ResponseErrorPanel } from '@backstage/core';
 import { Alert } from '@material-ui/lab';
 import { makeStyles, Paper } from '@material-ui/core';
 import { highlightLines } from './Highlighter';
@@ -95,11 +95,11 @@ export const FileContent = ({ filename, coverage }: Props) => {
     return <Progress />;
   }
   if (error) {
-    return <Alert severity="error">{error.message}</Alert>;
+    return <ResponseErrorPanel error={error} />;
   }
   if (!value) {
     return (
-      <Alert severity="error">
+      <Alert severity="warning">
         Unable to retrieve file content for {filename}
       </Alert>
     );