0020865: 'Content Encoding Error' when errors occur before compress handler is started

ID	Project	Category	View Status	Date Submitted	Last Update
0020865	mantisbt	bugtracker	public	2016-04-30 12:26	2021-08-07 08:26

Reporter	dregad	Assigned To	dregad
Priority	normal	Severity	major	Reproducibility	always
Status	closed	Resolution	fixed
Product Version	1.3.0-beta.1
Target Version	1.3.0-rc.2	Fixed in Version	1.3.0-rc.2

Summary	0020865: 'Content Encoding Error' when errors occur before compress handler is started
Description	If a run-time error is triggered while initializing the Core (e.g. a PHP deprecated warning, ), the browser displays a 'Content Encoding Error' instead of showing the actual error, which is confusing and makes troubleshooting more difficult than it should be. I noticed this while testing the behavior described in 0020864 on 1.3.x branch.
Steps To Reproduce	To reproduce the error add some code that triggers a PHP notice or some other error, e.g. $t = test; in user_pref_api.php
Tags	No tags attached.

related to	0020864	closed	dregad	"user_pref_get_language()" not defined
has duplicate	0020500	closed	atrol	Installation fails in PHP 7 environment
related to	0028963	closed	dregad	Do not buffer output for CLI scripts

MantisBT: master 046e878d 2016-04-30 08:28 dregad Details Diff	Do not enable compress handler if errors occured Prevents 'Content Encoding Error', shows the actual output instead. Fixes 0020865		Affected Issues 0020865
	mod - core/compress_api.php		Diff File

dregad 2016-04-30 12:34 developer ~0053043	Proposed solution is to detect whether there has been any output so far, and not start the compress handler in this case. See PR https://github.com/mantisbt/mantisbt/pull/771