From c8f39ad13bfde8734538f25fdeb99750830f0107 Mon Sep 17 00:00:00 2001
From: Frederick Fogerty <frederick.fogerty@gmail.com>
Date: Thu, 27 Aug 2020 10:23:23 +0200
Subject: [PATCH] fix(gatsby-transform-url): inconsistency between src and
 srcWebp caused by imgix-core-js bug:

https://github.com/imgix/imgix-core-js/issues/158
---
 packages/gatsby-transform-url/src/index.ts | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/packages/gatsby-transform-url/src/index.ts b/packages/gatsby-transform-url/src/index.ts
index e057ef8b..0dcedf69 100644
--- a/packages/gatsby-transform-url/src/index.ts
+++ b/packages/gatsby-transform-url/src/index.ts
@@ -51,8 +51,13 @@ function buildImageData(
     ar: imgixParams.ar != null ? `${imgixParams.ar}:1` : undefined,
   };
 
-  const src = client.buildURL(path, transformedImgixParams);
-  const srcset = client.buildSrcSet(path, transformedImgixParams);
+  // We have to spread parameters because imgix-core-js builders mutate params. GH issue: https://github.com/imgix/imgix-core-js/issues/158
+  const src = client.buildURL(path, {
+    ...transformedImgixParams,
+  });
+  const srcset = client.buildSrcSet(path, {
+    ...transformedImgixParams,
+  });
   const srcWebp = client.buildURL(path, {
     ...transformedImgixParams,
     fm: 'webp',