Memory Leak when navigating between pages located in separate files (JQM 1.4 final)

[wauwau0977]

Hi

JQM leaves some detached DOM objects. Depending on the structure of the page this may cause a significant memory leak.

Attached is the simplest case i can imagine. It will reproduce the behaviour. Also attached some screenshot with Google Chrome Profiler. Please switch 10x between page1 and page 2 to see an increase of about 100k...

This can be reproduced with JQuery 1.x and 2.x.

Our application is much more complex then the example, so we see rather big memory increase. Important: It seems as the demo i attached has just one simple leak. Unfortunately we see in our real application much more (since we use more widgets and events).

If you need more info, please ask...

The working demo that reproduces the behaviour can be downloaded from:
http://mindalyze.com/develop/JQueryMobile14MemoryLeak.zip (showcase folder)

Best regards,
Patrick Heusser

[arschmitz]

Thank you for reporting this issue. For us to look into their further can you please see our contributing guidelines at https://github.com/jquery/jquery-mobile/blob/master/CONTRIBUTING.md and create a jsbin test page which reproduces the issue. For now i'm going to close this as incomplete. We will reopen when the requested information is provided.

[wauwau0977]

Thanks for having a look at it... I completely understand, that you like to see the bug in standard view like jsbin.

i tried to create a jsbin version, unfortunately with multiple pages when JQM tries to load the new page, it gets a JSON object from jsbin...

http://jsbin.com/IVImOfa/latest/quiet

the zip i attached already contains a nice test setup, it just needs to be extracted and clicked to run... it's even cleaner, since it's "pure"...

please give it a look, we really struggle with the memory leak here...

regards,
patrick

[voronianski]

@arschmitz @wauwau0977 is it possible to prevent this memory leak without updating to 1.4?