fix: update subtitle overlay key from 'l-subtitle' to 'l-subtitles' in URL generation

Author: manu4543

src/url.ts

@@ -166,7 +166,7 @@ function processOverlay(overlay: Transformation["overlay"]): string | undefined
       }
       break;
     case "subtitle":
-      entries.push("l-subtitle");
+      entries.push("l-subtitles");
       {
         const subtitleOverlay = overlay as SubtitleOverlay;
         const enccoding = subtitleOverlay.encoding || "auto";

test/url-generation/overlay.js

@@ -145,7 +145,7 @@ describe("Overlay Transformation Test Cases", function () {
                 }
             }]
         });
-        expect(url).equal(`https://ik.imagekit.io/test_url_endpoint/tr:l-subtitle,i-subtitle.srt,l-end/base-video.mp4`);
+        expect(url).equal(`https://ik.imagekit.io/test_url_endpoint/tr:l-subtitles,i-subtitle.srt,l-end/base-video.mp4`);
     });
 
     it("Solid color overlay generates correct URL with background color FF0000", function () {
@@ -302,7 +302,7 @@ describe("Overlay Transformation Test Cases", function () {
             ]
         });
 
-        expect(url).equal(`https://ik.imagekit.io/test_url_endpoint/tr:l-text,i-${encodeURIComponent("Every thing")},lx-10,ly-20,lfo-center,lso-5,leo-15,ldu-10,w-bw_mul_0.5,fs-20,ff-Arial,co-0000ff,ia-left,pa-5,al-7,tg-b,bg-red,r-10,rt-N45,fl-h,lh-20,l-end:l-image,i-logo.png,lx-10,ly-20,lfo-center,lso-5,leo-15,ldu-10,w-bw_mul_0.5,h-bh_mul_0.5,rt-N45,fl-h,l-text,i-${encodeURIComponent("Nested text overlay")},l-end,l-end:l-video,i-play-pause-loop.mp4,lx-10,ly-20,lfo-center,lso-5,leo-15,ldu-10,l-end:l-subtitle,i-subtitle.srt,lx-10,ly-20,lfo-center,lso-5,leo-15,ldu-10,l-end:l-image,i-ik_canvas,bg-FF0000,lx-10,ly-20,lfo-center,lso-5,leo-15,ldu-10,w-bw_mul_0.5,h-bh_mul_0.5,rt-N45,fl-h,l-end/base-image.jpg`);
+        expect(url).equal(`https://ik.imagekit.io/test_url_endpoint/tr:l-text,i-${encodeURIComponent("Every thing")},lx-10,ly-20,lfo-center,lso-5,leo-15,ldu-10,w-bw_mul_0.5,fs-20,ff-Arial,co-0000ff,ia-left,pa-5,al-7,tg-b,bg-red,r-10,rt-N45,fl-h,lh-20,l-end:l-image,i-logo.png,lx-10,ly-20,lfo-center,lso-5,leo-15,ldu-10,w-bw_mul_0.5,h-bh_mul_0.5,rt-N45,fl-h,l-text,i-${encodeURIComponent("Nested text overlay")},l-end,l-end:l-video,i-play-pause-loop.mp4,lx-10,ly-20,lfo-center,lso-5,leo-15,ldu-10,l-end:l-subtitles,i-subtitle.srt,lx-10,ly-20,lfo-center,lso-5,leo-15,ldu-10,l-end:l-image,i-ik_canvas,bg-FF0000,lx-10,ly-20,lfo-center,lso-5,leo-15,ldu-10,w-bw_mul_0.5,h-bh_mul_0.5,rt-N45,fl-h,l-end/base-image.jpg`);
     });
 });
 
@@ -476,7 +476,7 @@ describe("Overlay encoding test cases", function () {
                 }
             }]
         });
-        expect(url).equal(`https://ik.imagekit.io/demo/tr:l-subtitle,i-sub.srt,l-end/sample.mp4`);
+        expect(url).equal(`https://ik.imagekit.io/demo/tr:l-subtitles,i-sub.srt,l-end/sample.mp4`);
     });
 
     it('Subtitle overlay with explicit base64 encoding', function () {
@@ -492,7 +492,7 @@ describe("Overlay encoding test cases", function () {
                 }
             }]
         });
-        expect(url).equal(`https://ik.imagekit.io/demo/tr:l-subtitle,ie-${encodeURIComponent(safeBtoa("sub.srt"))},l-end/sample.mp4`);
+        expect(url).equal(`https://ik.imagekit.io/demo/tr:l-subtitles,ie-${encodeURIComponent(safeBtoa("sub.srt"))},l-end/sample.mp4`);
     });
 
     it("Avoid double encoding when transformation string is in query params", function () {