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Why does my JavaScript code receive a “No 'Access-Control-Allow-Origin' header is present on the req
...icted by this policy. Quoted from Cross-Origin XMLHttpRequest:
Regular web pages can use the XMLHttpRequest object to send and receive data from remote servers, but they're limited by the same origin policy. Extensions aren't so limited. An extension can talk to remote servers outside of its ori...
What is “X-Content-Type-Options=nosniff”?
... You must mention that is for servers hosting untrusted content. For websites that don't display content from user uploads, you don't need to set this.
– machineaddict
Jul 15 '14 at 9:43
...
Binding to static property
...ink in case anyone wants to read more. Microsoft took it down, but it's on web archive here. web.archive.org/web/20131129053934/http://msdn.microsoft.com/…
– C. Tewalt
Apr 11 '16 at 1:02
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Faster way to develop and test print stylesheets (avoid print preview every time)?
...option have been updated for Chrome >51:
https://developers.google.com/web/tools/chrome-devtools/settings?hl=en#emulate-print-media
To view a page in print preview mode, open the DevTools main menu, select More Tools > Rendering Settings, and then enable the emulate media checkbox with th...
Where do I find the current C or C++ standard documents?
...ions of the standard
C89 – Draft version in ANSI text format: (https://web.archive.org/web/20161223125339/http://flash-gordon.me.uk/ansi.c.txt)
C90 TC1; ISO/IEC 9899 TCOR1, single-page HTML document: (http://www.open-std.org/jtc1/sc22/wg14/www/docs/tc1.htm)
C90 TC2; ISO/IEC 9899 TCOR2, single-pa...
Cookies vs. sessions
...PHP a couple of months ago. For the sake of creating a login system for my website, I read about cookies and sessions and their differences (cookies are stored in the user's browser and sessions on the server). At that time, I preferred cookies (and who does not like cookies?!) and just said: "who c...
Spring Boot: How can I set the logging level with application.properties?
...g Levels section of the reference guide.
logging.level.org.springframework.web: DEBUG
logging.level.org.hibernate: ERROR
For earlier versions of Spring Boot you cannot. You simply have to use the normal configuration for your logging framework (log4j, logback) for that. Add the appropriate config f...
Amazon S3 direct file upload from client browser - private key disclosure
...w.) Locking down CORS is not going to help: People can easily write a non-web-based tool (or a web-based proxy) that adds the correct CORS header to abuse your system.
The big problem is that you can't differentiate between the different users. You can't allow one user to list/access his files, bu...
nginx - nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
...
The reason is because you cannot have two web servers listening to the same port. Choose one, and if required, proxy. E.g. use nginx, but for certain requests (such as for php files), proxy to Apache port.
– d4nyll
Jan 22 '15 at...
Why is Hibernate Open Session in View considered a bad practice?
...he number of statements being generated requires going through all layers (web, service, DAO), while having the application deployed on a web container. Even when using an in-memory database (e.g. HSQLDB) and a lightweight web server (e.g. Jetty), these integration tests are going to be slower to ex...