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<p class="MsoNormal">I have a rule like the following where I am trying to replace instances of /spf/ with /ec/apps/symmetry/spf/. I’ve used sub_filter to do this sort of thing before and had luck with it.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> location /ec/apps/symmetry/ {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> proxy_pass http://stl-biz-d2-hrxsymmetry.devapp.c9.equifax.com:55943/;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> proxy_redirect / https://$host/ec/apps/symmetry/;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Courier New""> </span></b><span style="font-family:"Courier New""> #sub filter doesn't work if the upstream server returns compressed or zipped content.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> proxy_set_header Accept-Encoding identity;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Courier New""> sub_filter once off; # doesn’t seem to have an effect<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Courier New""><o:p> </o:p></span></b></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> sub_filter '<span style="background:aqua;mso-highlight:aqua">/spf/</span>' '<span style="background:yellow;mso-highlight:yellow">/ec/apps/symmetry/spf/'</span>;<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Courier New""><o:p> </o:p></span></b></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> add_header X-nginx-rule /ec/apps/symmetry;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> }<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The thing I am seeing here is that even though I specified sub_filter_once off I still only see the
<i>first</i> link modified in the html that comes back. When this html is returned<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""><html><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""><head><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <title> Welcome </title><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New"">
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New"">
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <meta name="viewport" content="width=device-width, initial-scale=1.0"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <meta name="robots" content="noindex,nofollow"/><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <script type="text/javascript" src="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/js/jquery.js?v=spf_2017-R5"></script><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <script type="text/javascript" src="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/js/bootstrap.js?v=spf_2017-R5"></script><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <script type="text/javascript" src="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/js/underscore.js?v=spf_2017-R5"></script><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <script type="text/javascript" src="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/js/beautify-html.js?v=spf_2017-R5"></script><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <script type="text/javascript" src="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/js/jquery-zoom.js?v=spf_2017-R5"></script><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <script type="text/javascript" src="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/js/spf-new-all.js?v=spf_2017-R5"></script><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <link href="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/css/bootstrap.css?v=spf_2017-R5" type="text/css" media="all" rel="stylesheet"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <link href="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/css/main.css?v=spf_2017-R5" type="text/css" media="all" rel="stylesheet">
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New"">
<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This is what I see coming out of nginx:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""><html><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""><head><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <title> Welcome </title><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New"">
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New"">
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <meta name="viewport" content="width=device-width, initial-scale=1.0"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <meta name="robots" content="noindex,nofollow"/><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <script type="text/javascript" src="<span style="background:yellow;mso-highlight:yellow">/ec/apps/symmetry/spf/</span>resources/js/jquery.js?v=spf_2017-R5"></script><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <script type="text/javascript" src="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/js/bootstrap.js?v=spf_2017-R5"></script><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <script type="text/javascript" src="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/js/underscore.js?v=spf_2017-R5"></script><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <script type="text/javascript" src="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/js/beautify-html.js?v=spf_2017-R5"></script><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <script type="text/javascript" src="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/js/jquery-zoom.js?v=spf_2017-R5"></script><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <script type="text/javascript" src="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/js/spf-new-all.js?v=spf_2017-R5"></script><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <link href="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/css/bootstrap.css?v=spf_2017-R5" type="text/css" media="all" rel="stylesheet"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New""> <link href="<span style="background:aqua;mso-highlight:aqua">/spf/</span>resources/css/main.css?v=spf_2017-R5" type="text/css" media="all" rel="stylesheet">
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Courier New"">
</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> I can see that “X-nginx-rule” header show up in the browser confirming that the request traversing this location block. The fact that anything is modified tells me that gzip and content-type are not getting in the way. sub_filter is filtering,
it’s just only doing it one time <span style="font-family:Wingdings">J</span>.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I was able to work around this by just accepting /spf/ in another location block but for future reference –
<b>has anyone seen sub_filter only make one substitution even when sub_filter once off is specified</b>?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-family:"Calisto MT","serif";color:#595959">Jason Whittington
</span></b><span style="font-size:10.0pt;font-family:"Calisto MT","serif";color:#595959">| Architect, PD Shared Services<o:p></o:p></span></p>
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<b><span style="font-size:9.0pt;font-family:"Lucida Sans","sans-serif";color:#595959">WORKFORCE<br>
SOLUTIONS</span></b><b><span style="font-size:9.0pt;font-family:"Lucida Sans","sans-serif";color:#595959"><o:p></o:p></span></b></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calisto MT","serif";color:#595959">(o) 314.214.7163 | (m) 636.284.4082</span><span style="font-size:9.0pt;font-family:"Calisto MT","serif";color:#595959"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calisto MT","serif";color:#595959"><a href="mailto:jason.whittington@equifax.com"><span style="color:#0563C1">jason.whittington@equifax.com</span></a><o:p></o:p></span></p>
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