feat: remove client-side cache-busting query parameters

Remove getRandParam() and urlWithTimestamp that added cache-busting
query params (&rand=... and &t=...) to output URLs.

This is now handled by the backend generating unique filenames
with timestamps (ComfyUI PR pending).

Updated files:
- app.ts: removed getRandParam() method
- queueStore.ts: removed urlWithTimestamp getter
- imagePreviewStore.ts: removed unused imports
- useCompletionSummary.ts: use .url instead of .urlWithTimestamp
- imageCompare.ts, useMaskEditorLoader.ts, audioUtils.ts,
  Load3dUtils.ts: removed getRandParam() usage

Amp-Thread-ID: https://ampcode.com/threads/T-019c17e5-1c0a-736f-970d-e411aae222fc

src/composables/maskeditor/useMaskEditorLoader.ts

@@ -59,10 +59,7 @@ function mkFileUrl(props: { ref: ImageRef; preview?: boolean }): string {
   }
 
   const pathPlusQueryParams = api.apiURL(
-    '/view?' +
-      params.toString() +
-      app.getPreviewFormatParam() +
-      app.getRandParam()
+    '/view?' + params.toString() + app.getPreviewFormatParam()
   )
   const imageElement = new Image()
   imageElement.crossOrigin = 'anonymous'

src/composables/queue/useQueueNotificationBanners.test.ts

@@ -17,7 +17,7 @@ type MockTask = {
   executionEndTimestamp?: number
   previewOutput?: {
     isImage: boolean
-    urlWithTimestamp: string
+    url: string
   }
 }
 
@@ -94,7 +94,7 @@ describe(useQueueNotificationBanners, () => {
     if (previewUrl) {
       task.previewOutput = {
         isImage,
-        urlWithTimestamp: previewUrl
+        url: previewUrl
       }
     }
 

src/composables/queue/useQueueNotificationBanners.ts

@@ -231,7 +231,7 @@ export const useQueueNotificationBanners = () => {
         completedCount++
         const preview = task.previewOutput
         if (preview?.isImage) {
-          imagePreviews.push(preview.urlWithTimestamp)
+          imagePreviews.push(preview.url)
         }
       } else if (state === 'failed') {
         failedCount++

src/extensions/core/imageCompare.ts

@@ -1,7 +1,6 @@
 import type { LGraphNode } from '@/lib/litegraph/src/LGraphNode'
 import type { NodeOutputWith } from '@/schemas/apiSchema'
 import { api } from '@/scripts/api'
-import { app } from '@/scripts/app'
 import { useExtensionService } from '@/services/extensionService'
 
 type ImageCompareOutput = NodeOutputWith<{
@@ -24,11 +23,10 @@ useExtensionService().registerExtension({
       onExecuted?.call(this, output)
 
       const { a_images: aImages, b_images: bImages } = output
-      const rand = app.getRandParam()
 
       const toUrl = (record: Record<string, string>) => {
         const params = new URLSearchParams(record)
-        return api.apiURL(`/view?${params}${rand}`)
+        return api.apiURL(`/view?${params}`)
       }
 
       const beforeImages =

src/extensions/core/load3d/Load3dUtils.ts

@@ -2,7 +2,6 @@ import type Load3d from '@/extensions/core/load3d/Load3d'
 import { t } from '@/i18n'
 import { useToastStore } from '@/platform/updates/common/toastStore'
 import { api } from '@/scripts/api'
-import { app } from '@/scripts/app'
 
 class Load3dUtils {
   static async generateThumbnailIfNeeded(
@@ -133,8 +132,7 @@ class Load3dUtils {
     const params = [
       'filename=' + encodeURIComponent(filename),
       'type=' + type,
-      'subfolder=' + subfolder,
-      app.getRandParam().substring(1)
+      'subfolder=' + subfolder
     ].join('&')
 
     return `/view?${params}`

src/renderer/extensions/vueNodes/widgets/utils/audioUtils.ts

@@ -1,5 +1,4 @@
 import type { ResultItemType } from '@/schemas/apiSchema'
-import { app } from '@/scripts/app'
 
 /**
  * Format time in MM:SS format
@@ -20,8 +19,7 @@ export function getResourceURL(
   const params = [
     'filename=' + encodeURIComponent(filename),
     'type=' + type,
-    'subfolder=' + subfolder,
-    app.getRandParam().substring(1)
+    'subfolder=' + subfolder
   ].join('&')
 
   return `/view?${params}`

src/scripts/app.ts

@@ -382,11 +382,6 @@ export class ComfyApp {
     else return ''
   }
 
-  getRandParam() {
-    if (isCloud) return ''
-    return '&rand=' + Math.random()
-  }
-
   static onClipspaceEditorSave() {
     if (ComfyApp.clipspace_return_node) {
       ComfyApp.pasteFromClipspace(ComfyApp.clipspace_return_node)

src/stores/nodeOutputStore.ts

@@ -117,12 +117,11 @@ export const useNodeOutputStore = defineStore('nodeOutput', () => {
     const outputs = getNodeOutputs(node)
     if (!outputs?.images?.length) return
 
-    const rand = app.getRandParam()
     const previewParam = getPreviewParam(node, outputs)
 
     return outputs.images.map((image) => {
       const params = new URLSearchParams(image)
-      return api.apiURL(`/view?${params}${previewParam}${rand}`)
+      return api.apiURL(`/view?${params}${previewParam}`)
     })
   }
 

src/stores/queueStore.ts

@@ -104,10 +104,6 @@ export class ResultItemImpl {
     return api.apiURL('/view?' + params)
   }
 
-  get urlWithTimestamp(): string {
-    return `${this.url}&t=${+new Date()}`
-  }
-
   get isVhsFormat(): boolean {
     return !!this.format && !!this.frame_rate
   }