Device: Pixel XL
Build: Android 7.1 and Android O
Chrome version: 59.0.3071.125
UC version: 11.3.8.976; 
Google Play Service：11.0.55（446-156917137）

Details:
UCBrowser is not able to resolve a txt file in chinese language because of SecurityException. However, there is no such issue if the file is in English.

Reproduce Steps:
1. Download UC Browser.
2. In chrome, download a .txt file (in chinese language). 
3. Click menu item, and select 'Downloads'.
4. Open the .txt file, and then Click the 'Options' icon to select the 'Open with' option. 
5. Choose the UC Text View.

Expected Result: UC is able to open the .txt file successfully.
Observed Result: UC pop up the network connection failure interface (Or crashes)

I think that when the file name is in Chinese and the URL has chinese text in it, then the permissions are not granted by the provider, which causes the security exception. Is it possible that the Chrome Provider is not granting permissions for the text files with names in language other than English, or is there a problem in parsing the URL with different language?

I have created an internal bug as well. You can find bug report and screen video there.
b/64041838

Thanks!