Local Page not loading/rendering - CEF3904

[mabhatt]

Hi,

I am trying to load a local page but everytime I am getting "Failed to load URL http://localhost/102-t1.html with error
ERR_FAILED (-2)." error. After debugging further I saw that the GetViewRect function of renderer is getting called but not onPaint.
I am not sure what I am doing wrong here.

I am using -
cef_binary_78.3.9+gc7345f2+chromium-78.0.3904.108_windows32

--
Thanks,
Manoj

[ndesktop]

Paint have nothing to do with ERR_FAILED, this is a network error.
AFAIK this is a cache error, either disk or certificate-related.
(Since this is localhost I'm excluding DNS-related errors, but maybe there are weird stuff in hosts file, I can't 100% rule this out either).

[mabhatt]

I tried setting up the same in different system, but still same error. I think the problem might be somewhere in my logic where I am parsing the input parameters. My error gone away when I started giving input file name without "file:///"

Error is coming when I am passing url parameter as -
file:///C:/testcef/test.html

[ndesktop]

file:// is a different animal. Do you actually have a webserver running on localhost[:80] and 102-t1.html resource available?

[mabhatt]

I have resource available but no webserver running on local. I have multiple html files and I am trying out to open them.

[ndesktop]

If you need a quick-and-dirty webserver, you can set up one with Python 2.7:
- create somewhere a directory C:\temp\htdocs
- in C:\temp\htdocs copy 102-t1.html file
- create C:\temp\htdocs\server.py file:

Code: Select all

import SimpleHTTPServer
import SocketServer

PORT = 80

Handler = SimpleHTTPServer.SimpleHTTPRequestHandler

httpd = SocketServer.TCPServer(("", PORT), Handler)

print "serving at port", PORT
httpd.serve_forever()


Ref: SImpleHTTPServer

- open a command prompt and run
python server.py

Now http://localhost/102-t1.html will be served by server.py. Console will show:

Code: Select all

$ python server.py
serving at port 80
127.0.0.1 - - [18/Feb/2020 09:08:13] "GET /102-t1.html HTTP/1.1" 200 -
127.0.0.1 - - [18/Feb/2020 09:08:13] code 404, message File not found
127.0.0.1 - - [18/Feb/2020 09:08:13] "GET /favicon.ico HTTP/1.1" 404 -


[mabhatt]

I finally figured out the problem. It was happening because of the network service enablement for newer branches.
I upgraded my cef branch from cef3202 to cef3904 which did not work.
After reading this https://bitbucket.org/chromiumembedded/cef/issues/2622/implement-support-for-networkservice I switched back to 3809 but again this has another issue where windows 7 library wasn't linking -
cef_sandbox.lib(md5_boringssl.obj) : error LNK2019: unresolved external symbol _MD5_Init referenced in function "void __cdecl base::MD5Init(struct md5_state_st *)" (?MD5Init@base@@YAXPAUmd5_state_st@@@Z)
So went back a little down 3770 which finally worked for me.

I never ever worked on such large C++ code base but one thing I absolutely appreciate is the documentation of CEF. Now, I'll restart reading my novel since my code started working.
Thanks @ndesktop for the help.

[ndesktop]

Check this and this, maybe it helps.
Usually is /MD.