The reason is very slow web page
Insufficient bandwidth, speed is not good
CPU or memory is filled
http request too many times
Too many web resources, to accept the data for a long time to load a resource slow
DNS resolution speed
Pages cause of the crash
Open too many pages, out of memory, speed is not good, or special code inside the page with your browser settings conflict, and even sites under attack
APP reason flash back
1. phone out of memory;
2. Program SDK version is not compatible with your phone
3. Network abnormalities caused
4. Excessive garbage cache: Due to the nature of the Android system, if not a long time to clean up junk files will cause more and more cards will appear flash back situation.