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how to fix “error loading viewer” error and web ide editor not working on own hosted gitlab server. i have my own gitlab server where i have all the code i write. today i was trying to check something fast in one of the source files on the server over the web frontend for gitlab and i couldn’t get file to show.  interesting. i tried web ide editor and i would get the same thing, just the message loading web ide editor and nothing would happen. next obvious step was to check console in developer tools in chrome. what i found there was an interesting error. only come from it. the next step was to check error logs on the nginx server. denied) while reading upstream, client: 83.241.177.117, server: git.server.address, request: get so error is obviously permissions based, nginx server is caching .js and .css content but it doesn’t have permissions to access cached content. solution was simple, just allow nginx to access all of the content in that folder and voila, everything works as it should. today i did a big mistake. i programmed wrong fuses on atmega328p. of course it was the fuse that sets external oscillator value instead of programmer and atmel studio but without any luck. then i started searching for solutions and i found one that worked in the end. if you overload external oscillator with high frequency, you will be able to erase chip, and erase fuse settings. first i tried this with oscillator clock from signal generator i was able to change frequencies and to try to find which one would work. i have tested first clock simulation on 3-10khz, but the one that worked for me was 4mhz with 5v amplitude, square wave. i was able to erase chip and then program it the right away. just connect signal from signal generator to xtal1 pin and you are good to go. of course, this took some time to do because of the following: as i had few old server fans available i decided to make fumes extractor from them in custom 3d printed case. i started with