3 ms·

Those red squiggles on view-source: pages in Gecko all have title text with diagnostics. The message (errProcessingInstruction) in recent-ish releases is given

by cxr 9mo ago

Those red squiggles on view-source: pages in Gecko all have title text with diagnostics. The message (errProcessingInstruction) in recent-ish releases is given as: > Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)