This is an upcoming feature for my personal project, LinguaBrowse: an app for browsing the foreign-language web. It principally applies transcriptions (such as pīnyīn to Chinese, and furigana to Japanese) to text, but also provides dictionary lookup for words with a single click. This demo is for the [macOS version](<a href="https://itunes.apple.com/gb/app/linguabrowse/id1422884180?mt=12" rel="nofollow">https://itunes.apple.com/gb/app/linguabrowse/id1422884180?mt...</a>), although an [iOS version](<a href="https://itunes.apple.com/gb/app/linguabrowse/id1281350165?mt=8" rel="nofollow">https://itunes.apple.com/gb/app/linguabrowse/id1281350165?mt...</a>) also exists.<p>The macOS version is built in React Native, using the react-native-macos community project. I write the code in Swift (for native) and TypeScript (for the React Native JSContext). Ideally I'd have liked to have delivered a click-to-OCR feature, but saving a copy of the file (hence the drag-and-drop) was the only way I could find to overcome both:<p>* CORS issues, with loading the image data into Tesseract; and
* the App Transport Security policy, which prevents mixed content in-browser and HTTP downloads by NSURLSession.<p>As a bonus, though, this methodology supports OCR of files dragged in from the file system.<p>Happy to talk about any part of it. Always striving to make foreign-language websites more readable.