Fix that blob urls persist on the shared anchor element and can't be later modified

.changeset/nervous-kiwis-nail.md

@@ -0,0 +1,6 @@
+---
+'rrweb-snapshot': patch
+'rrweb': patch
+---
+
+Bugfix after #1434 perf improvements: fix that blob urls persist on the shared anchor element and can't be later modified

packages/rrweb-snapshot/src/snapshot.ts

@@ -218,6 +218,8 @@
   }
   if (!customHref) {
     customHref = '';
+  } else if (customHref.startsWith('blob:') || customHref.startsWith('data:')) {
+    return customHref;
   }
   // note: using `new URL` is slower. See #1434 or https://jsbench.me/uqlud17rxo/1
   a.setAttribute('href', customHref);
@@ -263,7 +265,7 @@
 export function ignoreAttribute(
   tagName: string,
   name: string,
   _value: unknown,
 ): boolean {
   return (tagName === 'video' || tagName === 'audio') && name === 'autoplay';
 }
@@ -401,7 +403,7 @@
   iframeEl.addEventListener('load', listener);
 }
 
 function isStylesheetLoaded(link: HTMLLinkElement) {
   if (!link.getAttribute('href')) return true; // nothing to load
   return link.sheet !== null;
 }
@@ -568,7 +570,7 @@
         // So we'll be conservative and keep textContent as-is.
       } else if ((n.parentNode as HTMLStyleElement).sheet?.cssRules) {
         textContent = stringifyStylesheet(
           (n.parentNode as HTMLStyleElement).sheet!,
         );
       }
     } catch (err) {
@@ -657,7 +659,7 @@
     if (cssText) {
       delete attributes.rel;
       delete attributes.href;
       attributes._cssText = absoluteToStylesheet(cssText, stylesheet!.href!);
     }
   }
   // dynamic stylesheet
@@ -750,10 +752,10 @@
     const recordInlineImage = () => {
       image.removeEventListener('load', recordInlineImage);
       try {
         canvasService!.width = image.naturalWidth;
         canvasService!.height = image.naturalHeight;
         canvasCtx!.drawImage(image, 0, 0);
         attributes.rr_dataURL = canvasService!.toDataURL(
           dataURLOptions.type,
           dataURLOptions.quality,
         );