migrated to Chrome Manifest V3

[neo37]

Core problem

The extension was migrated to Chrome Manifest V3, which replaces the background page with a Service Worker. SWs have no document, no
URL.createObjectURL, and in this environment DOMParser was also inaccessible — breaking virtually every key feature.

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What was done today

Service Worker compatibility

• Replaced all URL.createObjectURL / URL.revokeObjectURL calls with data URLs (encodeURIComponent for text, arrayBuffer + btoa for blobs)
• Replaced the UUID trick via blob URL with crypto.randomUUID()
• Added self.window = self polyfill before importScripts so Turndown's window check doesn't fail

Turndown / HTML parsing in SW

• The root cause: TurndownService needs document/DOMParser to parse HTML strings — neither exists in the SW
• Multiple attempts to patch turndown.js (fallbacks, typeof DOMParser checks) — all failed because DOMParser itself wasn't accessible even as a
  bare global
• Final solution: inject turndown.js, turndown-plugin-gfm.js, and a new convert-article.js into the tab page via executeScript, parse the HTML
  with new DOMParser() there (page context always has it), and pass the resulting DOM node to TurndownService — bypassing the internal
  htmlParser() entirely
• Fixed TurndownService.prototype.defaultEscape not existing in the tab isolated world, causing self.escape is not a function and a silent
  fallback to the broken SW path

PDF export

• Single tab: replaced CDP Page.printToPDF with window.print() — opens the browser print dialog, no black background from dark-mode pages
• Batch tabs: restored CDP but with printBackground: false — saves directly to Downloads without dialog, no black background

Batch Markdown save ("All → Markdown")

• Changed forEach (fire-and-forget) to a sequential for...of with await — previously SW went to sleep before all downloads completed, so only
  the first tab was actually saved
• Added filtering to skip chrome://, chrome-extension://, about: tabs
• Added saveAs: false for batch mode so Chrome doesn't block downloads after the first dialog

Download filename fix

• generateValidFileName now applied to title before passing to downloads.download — prevents Invalid filename errors from user-edited titles or
  special characters
• Object.entries(imageList || {}) — guard against null imageList

Debug logging

• dbgLog() — persistent ring buffer (200 lines) stored in chrome.storage.local._debugLog
• "Show debug log" button in popup downloads markdownload-debug.txt to the Downloads folder
• Key conversion steps are logged (inject start, success/failure, markdown length)

[neo37]

i just found the branch that was there with v3...

[neo37]

new buttons: save all
if u press new btn "open all links" - after ypu can press " save all of them "

[neo37]

maan