Tesseract JS in Android

[jarodium]

Hello

I am experiencing some issues getting Tesseract JS in an Android default webview ( e.g Chrome ).
I keep getting this error:

Uncaught securityerror: failed to construct 'worker' : access to the script at 'blobl:file:///.....' is denied by the documents content security policy.

My CSP in my page is as following:

<meta http-equiv="Content-Security-Policy" content="default-src 'self' data: gap: https://ssl.gstatic.com 'unsafe-eval'; style-src 'self' 'unsafe-inline'; media-src *; img-src 'self' data: content:;">

Should I try a different CSP? If so, can provide an example so that Tesseract works with an image?

Thanks in advance

[alikrc]

Behind the scenes tesseract works with web workers(https://www.w3schools.com/html/html5_webworkers.asp). Seems like you need to figure out if android allows this or not.

You can try this one

https://stackoverflow.com/questions/32020039/using-a-web-worker-in-a-local-file-webview

[SwagatRanjit84]

@jarodium @HasanAliKaraca Have you solved the problem? How did you implement on android? I wanted to use on react native!!

[jarodium]

@SwagatRanjit84 haven't figured it out yet.

[jeromewu]

You can use workerBlobURL to solve the issue, more details in this PR: #322